Hello, I need to redirect all the email coming to one domain to another
like this:
@alias-domain.com -> @real-domain.com
which means when a mail is coming to my.n...@alias-domain.com, it's first
translated to my.n...@real-domain.com and later delivered to the mailbox.
I have found this in the virtual(5) doc:
-----
@domain address, address, ...
...
Note: @domain is a wild-card. With this form, the Postfix SMTP
server accepts mail for any recipient in domain, regardless of
whether that recipient exists. This may turn your mail system
into a backscatter source: Postfix first accepts mail for
non-existent recipients and then tries to return that mail as
"undeliverable" to the often forged sender address.
To avoid backscatter with mail for a wild-card domain, replace
the wild-card mapping with explicit 1:1 mappings, or add a
reject_unverified_recipient restriction for that domain:
smtpd_recipient_restrictions =
...
reject_unauth_destination
check_recipient_access
inline:{example.com=reject_unverified_recipient}
unverified_recipient_reject_code = 550
In the above example, Postfix may contact a remote server if the
recipient is aliased to a remote address.
-----
I'd like to go the way with the "check_recipient_access" option, but don't
know how to do it with databased map:
smtpd_recipient_restrictions =
...
reject_unauth_destination
check_recipient_access pgsql:map_file ?????
unverified_recipient_reject_code = 550
What is the correct settings instead of those "?????" please? Any hint?
Thanks, Tomas
