On Wed, Oct 28, 2015 at 05:33:12PM -0300, Rolando Guaracio wrote:
> The problem is that this message is bounced with the following
> line: said: 501 Syntax error: Empty email address. (in reply to MAIL FROM
> command)).
The string "Empty email address" does not appear in the Postfix source code.
> What can I do?
You can report the complete log entry that contains that message
without removing any leading or trailing content. And also say
which machine logged that message (the original client or the
relay).
In all probability the message was rejected by a misconfigured
external system, so the only thing you can do is try to talk some
sense into the operators of that system, or accept the fact that
bounces back to said system will be undeliverable.
--
Viktor.
