Why .mdu.pm does not do email

Every name under .mdu.pm shares one registrable domain. Mail reputation and browser cookie scope are decided at that level, not per citizen. If one name were used to send spam or run a phishing page, the damage would land on every other .mdu.pm name at once.

So the namespace carries no mail at all. Every registered name automatically publishes:

• MX 0 . - accepts no mail (RFC 7505)
• TXT "v=spf1 -all" - nothing may send as this name
• TXT "v=DMARC1; p=reject" - reject anything that tries
• TXT "v=DKIM1; p=" - all signing keys revoked

These records are managed for you and cannot be edited or removed. MX records and mail-related SRV records are refused. The upside is that nobody can spoof mail from your name either.

If you need email for a project, use a domain you own elsewhere and point it at your own mail host.