Email infrastructure

Authenticated outbound email, delivered on behalf of your app.

POST /v1/send · 200 · ✓ delivered

For developers

Evaluate the infrastructure

See how every message is authenticated and delivered — SPF, DKIM, DMARC and TLS across a dedicated sending stack.

See how it works

For recipients

Got an email from mailssender.cc?

Here is why a message reached you from this domain, in plain language. No account needed — just a straight answer.

Read the answer

01 — Routing

Every message takes the same authenticated path.

Website your app hands off
Mailssender authenticate · relay
Inbox delivered · verified

02 — Reliability

Authentication we actually run.

Deliverability is a discipline, not a promise. Each record is configured, signed, and monitored on every send.

  • SPFSender authorization. Publishes which servers may send for your domain, so receivers can reject spoofed mail.
  • DKIMCryptographic signature. Every message is signed, so its contents can be verified as untampered in transit.
  • DMARCPolicy & alignment. Ties SPF and DKIM together and tells receivers what to do when a check fails.
  • TLSEncrypted transport. Mail moves over encrypted connections wherever the receiving server supports it.
GET /v1/metrics · 200
Illustrative delivery dashboard showing an upward delivery-rate trend, queue depth and bounce-rate figures.
99.2%Delivery rate
0.4%Bounce rate
<2sMedian relay

Figures shown are illustrative of the metrics we monitor, not a live feed.

For recipients

Why did I get an email from mailssender.cc?

Because a website or app you use asked us to send it. Mailssender is the sending infrastructure behind other companies' email — password resets, receipts, and notifications. We do not sell lists, write the messages, or create accounts of our own. The email is a legitimate message from the service you signed up with, routed and authenticated through this domain.

Read the full FAQ