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In-house product · DexMTA DexMail DexVerify

Your email, delivered. Not lost in spam.

Send campaigns, receipts and login codes from trusted servers that learn from every send. Start free, see every delivery, and grow at your own pace.

Start sending free → Talk to us
  • No card needed
  • 5,000 free emails a month
  • Made in Nigeria

One project, three parts

Already sending for Pot of Food JetCircle

DexMail in 20 seconds.

From your spreadsheet to the inbox, and how DexMail tells you what to fix.

Send through us, or run your own server.

Most businesses just want their email to arrive. Some send so much they want the whole engine. We built both.

DexMail · send it for me

Campaigns, sequences and SMS, from your list.

For shops, restaurants, delivery apps, schools, fintechs and agencies.

  • Upload your list with all its columns
  • Build emails from blocks, sequences and forms
  • Send big lists a little each day, best contacts first
  • A daily email telling you what to improve
Start free →
DexMTA · give me my own server

The sending engine behind DexMail.

For apps, banks, fintechs and email resellers sending codes, receipts and alerts at volume.

  • Your own IPs, domains and signing keys
  • Many clients on one server, each with limits
  • Warm-up and an automatic emergency stop
  • Delivery results sent to your systems as they happen
See DexMTA →

From spreadsheet to inbox in three steps.

  1. 01

    Bring your contacts

    Upload a CSV or Excel file. Every column becomes something you can filter and personalise with.

  2. 02

    Write your email

    Start from a design or write your own. DexMail checks for spam words and broken links before you send.

  3. 03

    Send and learn

    Send now or a little each day. See who got it, opened and clicked, and get plain-English tips.

Everything you need to talk to customers.

One app instead of five. No jargon, no setup headaches.

Campaigns
Write once, personalise with any column from your list, test two subject lines, and send.
Automatic sequences
Welcome series, reminders and win-backs that run by themselves after someone signs up or clicks.
SMS
Reach people by text from the same lists, when email alone isn't enough.
Your own columns
Upload a spreadsheet as it is. State, level, city or any field becomes a filter and a merge tag.
Forms and landing pages
Hosted sign-up forms and simple pages that add new contacts straight to your list.
Replies in one inbox
Customer replies come back to DexMail, threaded, so your team answers from one place.
Reports in plain English
Who got it, who opened and clicked (people, not bots), and why some came back.
Leads verification
Checks your contacts' email addresses before you send, so you reach real people and fewer emails bounce.

New · DexVerify · Leads verification

Check every address before you send.

DexMail checks your contacts' email addresses first, so you send to real people and fewer emails bounce. Every result says what it is, how sure we are (0–100%), why, and what to do next.

It never guesses. An address with no evidence is "Unknown", not "good".

What it checks.

Format

Finds badly written addresses.

Typos

Catches mistakes like "gmial.com" and asks "Did you mean gmail.com?", also on sign-up forms, before the contact is saved.

Domain

Finds domains that don't exist or can't receive email.

Fake and throwaway

Spots throwaway inboxes, test domains and hidden relay addresses.

Shared inboxes

Marks addresses like info@ and sales@ as "careful".

Real sending history

Uses past deliveries, hard bounces, full mailboxes, opens and clicks, and how other addresses at the same company did.

Four simple results.

Good

Real and safe to send to.

Careful

Probably real, but send with care.

Dead

Won't receive your email. Stop sending.

Unknown

No evidence yet either way.

In detail: Deliverable, Invalid, No mail server, Disposable, Role address, Mailbox full, Risky, Unknown.

Built into how you send.

Check any amount
Check one address, paste up to 50, or upload a CSV and check a whole list in the background (up to 1 million).
Keep and remove lists
Download a "keep" list and a "remove" list.
One click to stop
Stop sending to dead addresses with one click.
List health at a glance
See how much of every list is checked, good, careful and dead, with charts of checks per day and the domains with the most dead addresses.
Before every campaign
The campaign page shows a list check before you send, and segments let you send only to deliverable contacts.
Stays up to date by itself
New contacts are checked when they arrive. A delivery marks an address good and a hard bounce marks it dead straight away. Out-of-date results are rechecked every day.
API for your own site or app
Check addresses from your own server with an API key.
Safer unsubscribe links
Unsubscribe links now ask for a click to confirm, so email security scanners can't unsubscribe real people by accident.

It tells you what to fix. You just reply "approved".

Each day DexMail looks at how your emails did and emails you suggestions in plain English. Nothing changes until you say yes.

  • Send more each day while your results are healthy
  • Stop emailing addresses that don't exist
  • Pause groups that keep bouncing
  • Stops sending by itself if something goes wrong, and tells you at once
DexMTA · the sending server

Your own email server, run like the big providers.

We install it on your server or ours, warm it up step by step while we watch your reputation, then stay on hand.

Your own IPs and domains

Send from addresses you control, grouped into pools, with DKIM signing for every domain.

Warm-up built in

New IPs and domains start small and step up automatically on healthy days.

Emergency stop

If bounces or spam complaints jump, sending pauses by itself before your reputation is hurt.

Many clients on one server

Separate logins, limits and sending domains for each brand or customer you serve.

Smart delivery

Per-provider speed limits, retries with back-off, and different handling for Gmail, Yahoo and Outlook.

Security checks

SPF, DKIM, DMARC, MTA-STS and TLS reporting, plus encrypted connections wherever possible.

Start free. Grow when you're ready.

Paid plans are priced in naira and sized to your list. Tell us what you send and we'll suggest the right one.

Free

₦0forever

For trying DexMail and small lists

  • Up to 2,000 contacts
  • 5,000 emails a month
  • Campaigns and sign-up forms
  • Reports and daily tips
Start free

Growth

Let's talk

For growing businesses

  • Bigger lists and more sending
  • Automatic sequences
  • SMS
  • Send big lists gradually
Talk to us

Business

Let's talk

For teams and agencies

  • Your own sending domain
  • Team members and approvals
  • Several sending domains
  • Priority help
Talk to us

DexMTA

Let's talk

Your own sending server

  • On your server or ours
  • Your IPs and domains
  • Set-up and warm-up done for you
  • Ongoing support
Talk to us

Good questions, plain answers.

Do I need a dollar card to start?

No. The free plan needs no card at all. Paid plans are priced in naira; talk to us and we'll set you up.

What do I get on the free plan?

Up to 2,000 contacts and 5,000 emails a month, with campaigns, sign-up forms and reports. When you outgrow it, talk to us about a paid plan.

Why does a new account start with a small daily limit?

Inbox providers like Gmail watch new senders closely. Starting small and growing while your results stay clean keeps your emails, and everyone else's, out of spam.

Will my emails land in the inbox?

Every email is signed and checked (DKIM, SPF and DMARC), addresses that don't exist are removed automatically, and DexMail watches how Gmail, Yahoo and Outlook treat you and tells you what to change. Nobody can promise 100%, but this is how the inbox is won.

What's the difference between DexMail and DexMTA?

DexMail is the app you use to send campaigns and messages. DexMTA is the sending server underneath it. Most businesses only need DexMail. If you send very large volumes or want everything on your own server, DexMTA is for you.

Can I bring my existing contacts?

Yes. Upload a CSV or Excel file. DexMail keeps every column you upload and lets you filter and personalise with them.

Your next email could be in the inbox in ten minutes.

Sign up, upload your list and send. Free to start, no card needed.

Start sending free → Talk to us

DexMail is built and run by Dexter Cyberlab, Abuja.