Is there currently a Linux email server that will allow me to replicate how Gmail or Outlook allow aliases.
i.e. with Hotmail (which is now Outlook) or Gmail I can sign up on a site and use [email protected] and it will come to the [email protected] account without first having to set up an alias.
This is typically called “plus addressing”. Most email servers can do it and were already doing it before GMail and Hotmail existed and copied that feature.
With Postfix, set recipient_delimiter in /etc/postfix/main.cf. This is in the default configuration as shipped by some distributions such as Debian and Ubuntu.
recipient_delimiter = + With Exim, set a local part in /etc/exim.conf:
local_part_suffix = +* : -* local_part_suffix_optional The old Email addressing FAQ discusses some older MTAs including Sendmail and Qmail.
+can be part of any email address' local part. Automatically disposing seems something Hotmail specific to me that Gmail copied (or vv.)