Logging In/Account Creation
Email accounts under @postgresql.org are not generally available, and are only for specific use cases or for for a number of people who are "grandfathered" in.
How to Access Your PostgreSQL.org Address
The postgresql.org mail system is accessible through various different interfaces, depending on how you want to use it you can choose between:
Webinterface: Go to postgresql.org webmail system and log in. This gets you into RoundCube, a fairly simple webmail interface. It is even multi-lingual.
POP3/IMAP4: You can access imap.postgresql.org via POP3 or IMAP4 using the hostname imap.postgresql.org. Connections need to use TLS encryption, either directly or using STARTTLS. At least TLS 1.2 is required.
SMTP: we provide an authenticated-only SMTP relay service using the hostname smtp.postgresql.org. Connections need to use TLS encryption, either through smtps or STARTTLS.