Deliverability Fixes for Revenue-Critical Email
Fix email deliverability issues before they cost more pipeline.
TK WebHosts diagnoses and repairs the technical and reputation issues keeping sales, support, and lifecycle emails out of the inbox.
- SPF, DKIM, DMARC, DNS, and sender setup fixed properly
- Inbox-placement issues traced to the real failure points, not guesses
- Clear remediation plan for urgent fixes and longer-term reputation recovery
Request Your Free Deliverability Audit
Submit the affected domain and TK WebHosts will assess the likely failure points, then reply with the right next step and a written quote within 24 hours.
- 1Your details
- 2The problem
- 3What you need
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Trusted by Businesses That Depend on Email
Also trusted by Brandwell Inc · OxyPlus UK · Thistle & Fern
Why Email Deliverability Matters
Your emails are only valuable if they reach the inbox. Poor deliverability means lost revenue, wasted marketing efforts, and damaged sender reputation. TK WebHosts fixes the technical and strategic issues keeping your emails out of the inbox.
Mail lands in spam for some recipients, not others
Authentication that passes at one provider and fails at another. Missing or misconfigured SPF, DKIM, or DMARC records are the first thing checked, because each receiving provider weighs them differently.
Delivery got worse after a platform change
A new sending tool, provider, or migration that was never added to the domain’s authentication. The mail is genuine; the records no longer describe who is allowed to send it.
Everything stopped delivering at once
A blacklist entry against the sending IP or the domain. TK WebHosts confirms which list, why it fired, requests removal where applicable, and puts preventive measures in place.
Open rates fell with no change to the content
Sender reputation drift rather than copy. Sender score, IP reputation, and domain reputation all move over time, and a falling open rate is often the first visible symptom.
Bounce rates climbing on a list that used to work
High bounce rates damage reputation, and damaged reputation causes more bounces. Breaking the loop means fixing the technical side and the list behavior feeding it.
A new domain or IP never got traction
Sending started at full volume with no warmup. New domains and IPs have no history, so reputation has to be built gradually before volume is safe.
email deliverability projects completed
countries with active clients
written quote turnaround
The work behind these numbers: case studies · client reviews
What Are Email Deliverability Services?
Email deliverability services diagnose and repair the reasons legitimate email lands in spam folders or gets rejected: authentication records (SPF, DKIM, DMARC), sender reputation, DNS configuration, and sending practices. The work covers a technical audit across every system that sends on your behalf, the fixes themselves, and written documentation of what changed and why.
TK WebHosts has 5000+ email deliverability projects completed — it is the deepest specialty in the practice. Repair timelines are honest rather than instant: authentication fixes take effect quickly, while sender reputation improvement takes 2-4 weeks. No provider controls inbox placement, so the commitment is diagnosis, repair, method, and reporting — never a placement percentage. Related reading: why emails go to spam, and the order to check the causes.
Last reviewed: August 21, 2026
Email Deliverability Services
Six areas of work, scoped to what your setup actually needs and put in writing before anything starts.
SPF, DKIM & DMARC Setup
Implement and configure email authentication protocols to prove your emails are legitimate and prevent spoofing.
Deliverability Audit
Comprehensive analysis of your email infrastructure, sender reputation, content, and technical configuration to identify issues.
Sender Reputation Management
Monitor and improve sender score, IP reputation, and domain reputation, with changes and risks documented clearly.
Email Warmup
Gradually build your sending reputation with new domains or IPs using proven warmup sequences and best practices.
DNS & Infrastructure Setup
Configure DNS records, dedicated IPs, and email infrastructure for optimal deliverability and compliance.
Monitoring & Reporting
Ongoing monitoring of authentication, sender reputation, and blacklist status with actionable reporting.
What the Free Deliverability Audit Covers
Submit the affected domain and TK WebHosts assesses the likely failure points across three layers, then replies with the right next step and a written quote within 24 hours.
Authentication and DNS
- SPF record and the servers it authorizes
- DKIM signing on every sending platform
- DMARC policy and what it is currently enforcing
- DNS records for the sending domain
- Records for third-party tools sending as you
Reputation and blacklists
- Sender score for the sending identity
- IP reputation for the sending infrastructure
- Domain reputation, including subdomains in use
- Blacklist status and which list fired
- Bounce rates and what is driving them
Sending setup and content
- Email infrastructure and how mail actually routes
- Dedicated IPs, where they are in use
- Platform configuration — Microsoft 365, Google Workspace, SES, custom SMTP
- Spam-like content signals in the templates you send
- Anything inherited from a previous provider or migration
What you get back
A written assessment rather than a sales call transcript. If the fix is small, that gets said too.
- The failure points found, named and explained
- The right next step, even when that means another provider
- A written quote within 24 hours
- Fixed price agreed before any work starts
- A written handover with what changed, once work is done
- An inbox-placement test report on the Full Audit + Setup tier
How the Work Runs, Phase by Phase
Five phases. Not every engagement needs all five — the audit decides which ones apply, and the quote says so before you commit.
Phase 01
Diagnose before touching anything
Analysis comes first, not changes. Infrastructure, sender reputation, content, and technical configuration are checked against what the domain is genuinely being used to send, including the tools nobody remembers connecting.
You get the actual failure points named. Generic best-practice checklists are cheap and they rarely explain why your mail specifically is being filtered.
In this phase
- Full authentication and DNS review
- Sender, IP, and domain reputation check
- Blacklist status across the lists that matter
- Bounce rates and spam-like content signals
- Inventory of every system sending as your domain
Phase 02
Repair authentication properly
SPF authorizes sending servers, DKIM adds a digital signature, and DMARC provides policy enforcement. All three are essential, and partial setups are the most common finding.
Technical fixes like SPF and DKIM can be implemented immediately, so this is usually where the first visible change comes from.
In this phase
- SPF covering every legitimate sending source
- DKIM signing configured on each platform
- DMARC policy set deliberately, with reporting on
- Spoofing exposure reduced on the domain
- Records documented so future changes are safe
Phase 03
Rebuild the sending setup
Authentication only works if the infrastructure underneath it is coherent. DNS records, dedicated IPs where they are warranted, and the sending platform itself are configured, whether that is Microsoft 365, Google Workspace, SES, or a custom SMTP setup.
Where the current platform is the actual problem, that goes in writing before recommending a move.
In this phase
- DNS and sending-domain configuration
- Dedicated IPs where volume justifies them
- Platform configuration across M365, Workspace, SES, custom SMTP
- Records added for third-party sending tools
- Compliance-relevant configuration handled
Phase 04
Warm up and recover reputation
New domains and IPs have no sending history, so volume is built gradually using warmup sequences and capacity planning rather than switched on at full rate. Where a blacklist entry exists, removal is requested where applicable and preventive measures are put in place.
Timelines are stated plainly: sender reputation improvement takes 2–4 weeks, and blacklist removal can take a few days to weeks depending on the list.
In this phase
- Warmup plan for new domains and IPs
- Capacity planning so volume rises at a survivable rate
- Blacklist delisting requests where applicable
- Preventive measures against re-listing
- Risk disclosure on anything that can't be controlled
Phase 05
Hand it over in writing
Every engagement ends with paperwork, not just a working system: what was wrong, what changed, and what to watch. It is the single thing clients mention most often in reviews.
If the provider changes tomorrow, the next one inherits notes instead of archaeology.
In this phase
- Written handover covering every change made
- The records as they now stand, in full
- What to watch, and what would break it again
- Who to contact when a record needs to change
- Optional move onto ongoing monitoring
Common Deliverability Issues
The four situations that bring most clients here. Each one is a different piece of work, and the audit identifies which one applies.
Emails Going to Spam
Diagnose authentication, content, and sender-reputation issues, then repair the failure points that are controllable.
Blacklisted IP/Domain
Remove your IP or domain from blacklists and implement preventive measures to avoid future listings.
Low Open Rates
Improve deliverability, sender reputation, and email content to boost open rates and engagement.
Email Migration Issues
Seamlessly migrate to new email providers while maintaining deliverability and sender reputation.
The Infrastructure Behind the Fix
Deliverability work touches DNS, mailboxes, hosting, and the platforms in between. TK WebHosts runs all of those layers, so the fix does not stop at the boundary of someone else’s contract.
Choose where your mail lives
For UK and EU businesses, mailboxes can stay on EU-based infrastructure, so data residency is a decision you make rather than a footnote you discover later.
Managed DNS you are not afraid of
Records planned, changed, and verified for you, with a management area of your own so nothing is locked behind an agency.
Monitoring for drift
Someone adds a new sending tool, a platform rotates a key, a record gets edited by a well-meaning contractor. TK WebHosts watches for that, and for blacklist entries and reputation changes, and tells you before your customers do.
Business email, with a real choice
Mailboxes on your own domain, with an honest recommendation between TK WebHosts’ managed email, Google Workspace, or Microsoft 365 — then set up, authenticated, and supported by the same team.
Your own client area
A client area for invoices, services, and support tickets, plus a TK WebHosts webmail login for your team rather than a hostname nobody can spell.
One accountable team
Most agencies own one layer. When the problem lives between layers — the site is fine but the mail bounces, the DNS is right but the platform disagrees — you get a conference call instead of a fix. TK WebHosts holds all of it.
Migrating or Inheriting a Setup
Moving providers is where most deliverability damage happens. This is the sequence followed, whether you are switching platforms or taking over something nobody documented.
Record what exists
Ownership, registrar locks, renewal timing, DNS, and every service currently using the domain. Existing mail and authentication records are written down and validated before anything is changed.
Agree the target setup
TK WebHosts’ managed email, Google Workspace, or Microsoft 365, chosen on feature and price fit for your team rather than on what is easiest to provision. Supplied, configured, and supported by the same team.
Move the data
Mail, calendars, contacts, and archives moved between providers, with inherited or duplicate accounts consolidated so you end up with a mailbox list you can actually account for.
Sequence the DNS
The cutover is planned rather than improvised, and records are changed in an order that keeps mail flowing. Downtime is kept to a minimum and the window is confirmed in advance.
Authenticate the new setup
SPF, DKIM, and DMARC rebuilt against the new platform, plus records for every third-party tool that sends on your behalf. A migration without this step is where spam-folder problems start.
Hand over and verify
Test sends, a written record of the final configuration, and a handover your team can act on. Ongoing monitoring is available if continued monitoring is preferred.
Migration is a move, not a maintenance contract. Plugin, theme, and platform update work is a separate service — see website maintenance.
Who This Is For
Most clients arrive when something important is broken, underperforming, or too technical to untangle alone. Here is where TK WebHosts is useful, and where it is not.
A good fit if
- Sales, support, or lifecycle email is landing in spam and you cannot tell why.
- Your domain or sending IP has been blacklisted and you need it resolved.
- Open rates dropped and you need to know whether it is the content or the delivery.
- You are moving email providers, or you inherited a setup nobody documented.
- You send from more than one office or domain and want the configuration consistent across both.
- You are about to launch an email program and want the technical foundation right first.
- You need a written record of what was changed for an internal or client-facing audit.
Outside the Scope
- Cold outreach campaigns. TK WebHosts runs email programs to lists that have opted in. For cold outbound, a separate infrastructure approach is recommended, with advice available at consultation.
- Guaranteed inbox percentages. Inbox placement is decided by the receiving provider, not by the agency doing the work, and anyone promising a number is selling you something they do not control.
- Guaranteed rankings, placements, or outcomes of any kind. The commitment is diagnosis, repair, method, and reporting.
- Silent changes. Nothing gets altered on your domain without a written scope and a fixed price agreed first.
Deliverability Engagements
Starter ranges below. You get a fixed-price quote at the free consultation, in writing, before any work starts — no hourly-billing surprises, no scope creep.
Deliverability Fix
from $500 (one-off)
The targeted repair when the audit finds a specific, fixable failure.
- SPF / DKIM / DMARC audit + fix
- Sender reputation diagnosis
- Blacklist removal where applicable
- Written handover with what changed
Full Audit + Setup
from $1,200 (one-off)
The full rebuild when the problem spans authentication, DNS, and the sending platform.
- Everything in Deliverability Fix
- Domain warmup plan
- DNS infrastructure setup
- Platform configuration (M365 / Workspace / SES / etc.)
- Inbox-placement test report
Ongoing Monitoring
from $250 / month
For senders who cannot afford to find out from a customer that something broke.
- Continuous reputation monitoring
- Blacklist alerts + remediation
- Monthly placement tests
- Rapid response to incidents
Third-party costs are passed through at cost: domains, hosting upgrades, premium email platforms, listed transparently in every quote. Clients routinely start on a single fix or audit and grow from there — no long-term commitment required. Full pricing.
What Clients Say
Real results from businesses that fixed their email deliverability.
“Wow! What can I say about TK WebHosts’ service other than exceptional, from start to finish.”
“TK WebHosts immediately responded and created the DMARC & DKIM entries. Couldn’t have been better.”
“TK WebHosts was incredibly thorough, quick, and provided actionable ideas to improve deliverability.”
“One of the best experiences I ever had. Straight to the point, extremely knowledgeable, sophisticated solution. Worth every single penny!”
“TK WebHosts is great. Clear communication, explained everything and helped us set up our DKIM / SPF.”
“It was a great experience working with TK WebHosts. They resolved the DNS and email issues in less than an hour.”
Need more proof? Read client reviews · Browse portfolio
Deliverability Work in Context
Problem. Fix. Outcome. Three engagements where email was the thing that was broken, or the thing that broke during something else.
Legal Services · New York · London
Macklin Law
Email visibility issues affecting communication across two offices.
TK WebHosts audited the mail posture and rebuilt the core authentication setup, repairing DMARC and cleaning up DKIM. The client regained confidence in its email infrastructure across both offices, with a stronger technical base for trust-critical client communication.
Read case study →Split email delivery and routing →
Manufacturing · International
Emerging Components
Migration, deliverability, web, and automation handled as one operating system.
Too many connected technical needs were at risk of becoming fragmented and expensive. The client received year-round delivery across four projects, with fewer handoff points and a more coherent technical foundation for future work.
Read case study →Aquatic Services · United Kingdom
Poolspa Pro
SPF, DKIM, and DMARC resolved alongside the app and automation work.
Multiple technical needs were building up across operations and customer experience. The client kept returning for follow-on work across four engagements, with one technical partner handling the app, automation, and infrastructure together.
Read case study →Next step after the fix
Once It Delivers, Make It Earn
Fixing deliverability makes an email program possible. It does not make one. If you want the campaigns, automations, and reporting as well, that is a separate engagement run by the same team.
Authentication, warmup, and placement work stay part of the engagement rather than becoming an expensive afterthought. And if mail is landing in spam at the start, that gets fixed first.
What an email program includes
- Strategy and audit — list health, sender reputation, segmentation, and a calendar tied to revenue goals
- Campaign execution — newsletters, promotions, launches, and re-engagement, written and designed
- Lifecycle automations — welcome, abandoned cart, post-purchase, re-engagement
- List growth — on-site capture, lead magnets, and integrations with your forms, ads, and CRM
- Monthly reporting tied to revenue, list growth, and engagement
Frequently Asked Questions
Why are my emails going to spam?
Common causes include missing or misconfigured SPF/DKIM/DMARC records, poor sender reputation, spam-like content, high bounce rates, or being on a blacklist. TK WebHosts identifies and fixes all of these.
What are SPF, DKIM, and DMARC?
These are email authentication protocols that verify your emails are legitimate. SPF authorizes sending servers, DKIM adds a digital signature, and DMARC provides policy enforcement. All three are essential for deliverability.
How long does it take to fix deliverability issues?
Technical fixes like SPF/DKIM can be implemented immediately. Sender reputation improvement takes 2-4 weeks. Blacklist removal can take a few days to weeks depending on the list.
Can you guarantee my emails will reach the inbox?
No — and be skeptical of anyone who does. Inbox placement is decided by the receiving provider, not by the agency doing the work. What's controllable is the technical and reputation side: authentication, DNS, sending setup, warmup, list hygiene, and content signals. TK WebHosts diagnoses the real failure points, fixes them, and reports on what changed.
Do you work with all email platforms?
Yes. TK WebHosts works with all major email platforms, including Google Workspace, Microsoft 365, SendGrid, Mailgun, Amazon SES, and custom SMTP servers.
What does the free deliverability audit actually include?
After the affected domain is submitted, TK WebHosts assesses the likely failure points across authentication and DNS, reputation and blacklist status, and the sending setup and content, then replies with the right next step and a written quote within 24 hours. There is no obligation to proceed.
What do you get at the end of the work?
A written handover covering what was wrong, what changed, and what to watch. On the Full Audit + Setup tier that also includes an inbox-placement test report. The documentation is the part clients mention most often in reviews, and it means the next provider inherits notes rather than guesswork.
Can you fix this without moving my email provider?
Often, yes. Most of the work is authentication, DNS, and sending configuration, and that can usually be done on the platform already in place. A move is only recommended when the current setup is the actual problem, and that recommendation comes in writing with the reasoning attached.
Will email keep working while you make changes?
That is the goal. Existing mail and authentication records are recorded and validated before DNS changes are made, and the cutover is sequenced rather than improvised. Downtime is kept to a minimum and you get the planned window in advance.
Can you migrate my mailboxes to another provider?
Yes. TK WebHosts moves mail, calendars, contacts, and archives between providers, consolidates accounts nobody can account for, and sequences DNS so the switch is uneventful. Authentication is rebuilt against the new platform as part of the move. Migration covers moving the setup, not ongoing updates or maintenance — that is a separate service.
Can you support Microsoft 365 and Google Workspace?
Yes. TK WebHosts handles setup, migration, DNS authentication and deliverability work across both platforms, and supplies and supports the licenses directly, so there is one team and one invoice rather than a support queue to argue with.
Do you run cold outreach campaigns?
No. TK WebHosts runs email programs to lists that have opted in. For cold outbound, a separate infrastructure approach is recommended, with advice available at consultation.
How much does deliverability work cost?
Deliverability Fix starts from $500 as a one-off, Full Audit + Setup from $1,200 as a one-off, and Ongoing Monitoring from $250 per month. Those are real anchors — most projects land at or above them, depending on scope. You get the exact quote at the free consultation, in writing, before any work starts. Third-party costs such as premium email platforms are passed through at cost and listed in the quote.
Are you email deliverability consultants, or do I need someone separate?
TK WebHosts is the email deliverability consultant on the engagement — the audit, the DNS and authentication fixes, the reputation work, and the written handover come from one team, not a freelancer billed by the hour. Every engagement is scoped and quoted in writing after the free audit, so the cost is fixed once the work starts rather than growing with time spent diagnosing the problem.
Do you offer ongoing monitoring, or is this one-off work?
Both. Most clients start with a one-off fix or audit and move onto a monthly retainer once the initial work is live. Ongoing Monitoring covers reputation monitoring, blacklist alerts and remediation, monthly placement tests, and rapid response to incidents. There is no long-term commitment required to start.
How access works
Access runs through a named, least-privilege account created for TK WebHosts, with multi-factor authentication required on anything touched, the prior state captured before every change, and a written revocation checklist handed over when the work is done. One company — TK WebHosts Ltd — provides the service, invoices you and carries the liability.
Ready to Fix Your Email Deliverability?
Stop losing revenue to the spam folder. Get a free deliverability audit and discover exactly what’s keeping your emails out of the inbox.
Request Your Free Deliverability AuditOr call TK WebHosts — US: +1 551 525 5551 · UK: +44 20 3877 7555