Mail

Mailpit 1.30.3 catches everything your sites send. SMTP on 11025, web UI on 18025.

rex mail          # list caught messages
rex mail open     # open the web UI
rex mail clear    # delete ALL messages

Nothing reaches a real inbox

Password resets, order confirmations, plugin notifications, that WooCommerce email you are debugging with a client’s address still in a test order — all of it stops here.

This is the feature’s whole point. Local development that can send real mail eventually does.

WordPress sites are already wired

Sites rexenv creates are configured to send through Mailpit. Nothing to install, no SMTP plugin, no credentials.

Other projects

Point your mailer at:

host       127.0.0.1
port       11025
encryption none
auth       none

For Laravel, that is MAIL_HOST and MAIL_PORT in .env with MAIL_MAILER=smtp.

Why not 1025 and 8025

Those are Mailpit’s stock ports, and MailHog’s. Using them would mean rexenv collides with a standalone Mailpit, a MailHog, or Herd Pro’s bundled copy the moment both are running.

The offset is why you can keep whatever you already have. See Ports.

What you can see

Mailpit’s UI shows the rendered HTML, the plain-text alternative, the raw source with full headers, and attachments. Useful for the two questions local mail debugging is usually about: did it send at all, and does the template survive a real mail client.