Email

Cito uses postfix to send outgoing messages, so that mail sent via PHP's mail() function is supported.

Postfix is set up as an unauthenticated SMTP server that only accepts local connections. It runs on port 25, which is not open externally.

DKIM

We support DKIM signing of outgoing messages. You can use the psdkim utility to enable DKIM signing for a domain. This tool will generate a key and then output a DNS record for you to add:

cito/var/log # psdkim
Usage: psdkim -d <domain>

  -d: Domain name (required).

Note that only the default selector is supported. If you need a custom selector please contact Support.