p25.dev
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p25.dev
p25.dev

Closing the gap between self-hosted email and reliable delivery

How emailing via p25.dev works

p25.dev sits between the internet and your self-hosted email server. We relay your outbound mail to ensure deliverability, spool your inbound mail during downtime, and monitor your DNS health 24/7 to alert you if anything is down.

Internet External email hosts p25.dev Backup MX / Spooling Secure SMTP Relay Uptime & DNS Monitor Mail Server e.g. Mox / Stalwart (Click to toggle) Inbound Email (via Backup MX) Outbound Relay DNS / TLSA / DANE Monitoring

Secure SMTP Relay

Ensure your emails reach the inbox. Our email relay bypasses port blocks and IP reputation issues.

Backup MX & Spooling

If your home server goes offline, we automatically spool your inbound mail and deliver it once you are back online. Or use our backup MX to hide your own infrastructure from the internet.

DNS Monitoring

We monitor your vital DNS records 24/7, alerting you before technical issues affect receiving or sending emails.