Pre‑launch • Founder‑led UK support

IoTMail — Email that your routers can actually send

SMTP made for IoT and M2M: device alerts, logs, and status emails that just deliver. No faff with consumer ISPs or corporate restrictions. Free for IoT router users for 12 months while we ramp up.

Create a free account See how it works

Built for devices

Works with Teltonika, Robustel, Proroute, Cradlepoint, InHand, and anything that can talk SMTP. Supports STARTTLS, TLS, and older stacks.

Plus addressingSMTP AUTHIPv4 & IPv6Device‑friendly throttling

Deliverability

We handle SPF, DKIM and DMARC correctly. Optional dedicated IPs later. Sensible rate limits so providers don’t throttle you.

SPF/DKIM/DMARCQueue & retryBounce handling

Simple to run

Clear credentials, clear docs. Use plus addressing to triage alerts into folders without creating new inboxes.

Roundcube webmailIMAP/POP3Admin portal (coming)

What you get during the free 12‑month period

Plan:
1 mailbox (e.g. device@iotmail.co.uk) with SMTP send + IMAP receive.
Fair use:
Up to 3,000 emails/month. Generous limits for testing. Abuse and bulk marketing are blocked.
Security:
TLS, enforced auth, brute‑force protection, and optional 2FA for the portal when it launches.
Support:
Straight UK support, device‑specific guides, and examples for common router brands.

After 12 months you can continue on Free (reduced limits) or move to Starter/Pro. No lock‑in. Cancel any time.

Free (12 months for IoT routers)

£0/mo
  • 1 mailbox with SMTP + IMAP
  • 3,000 emails/month fair use
  • Plus addressing
  • Roundcube webmail

For legitimate device alerts only. No newsletters, no spam. We monitor for abuse.

Starter & Pro (coming soon)

from £6/mo
  • Multiple mailboxes
  • Higher send limits
  • Optional dedicated IP later
  • Basic API + portal

We’ll invite early users with sensible upgrade discounts.

Sign up — free for 12 months

Tell us who you are, which routers/SIMs you use, and we’ll set you up. You’ll receive credentials and a quick guide by email.

Which router brands do you use?

Which SIM providers?

If the form fails, email signup@iotmail.co.uk with the above details.

Technical details

SMTP (send):
hostname smtp.iotmail.co.uk, ports 587/465, AUTH required, STARTTLS/TLS.
IMAP/POP3 (receive):
mail.iotmail.co.uk ports 993/995, TLS required.
Plus addressing:
device+alerts@iotmail.co.uk routes to device@… for easy filtering.
Roadmap:
Admin portal, API, webhooks, per‑device credentials, SES relay option.