Michal Kurka:
> Hello.
> I need accept incoming mails with invalid envelope sender address. But
> Postfix reject these mails:
>
> MAIL FROM: <@168.1.150>
> 501 5.1.7 Bad sender address syntax
>
> I used "sender_canonical_maps" with record
> @168.1.150 u...@domain.tld
> but this isn't enough.
>
> (In old version Postfix (2.1.5) it was enough.)
>
> How can I solve this now?
The SMTP server supports command rewriting with regular expressions.
It was created for cases like this (and for testing such cases).
smtpd_command_filter (default: empty)
A mechanism to transform commands from remote SMTP clients. This is a
last-resort tool to work around client commands that break inter-oper-
ability with the Postfix SMTP server. Other uses involve fault injec-
tion to test Postfix's handling of invalid commands.
Specify the name of a "type:table" lookup table. The search string is
the SMTP command as received from the remote SMTP client, except that
initial whitespace and the trailing <CR><LF> are removed. The result
value is executed by the Postfix SMTP server.
See also the examples of things that don't need smtpd_command_filter,
and of things that do.
Wietse
