Re: [Exim] stmp protocol violation, synchronization error, i…

Mick Swisher wrote:

> We just deployed Exim 4.30 w/ the exiscan patch and some other third
> party software. We are getting thousands of these error messages daily.
>
> ... SMTP protocol violation: synchronization error (input sent without
> waiting for greeting) rejected connection from ...
>
> I have read through parts of the manual, the FAQ, and searched the
> mailing list archive as best I can but still have questions.

Sorry. My bad. I searched the mailing list archives at an online forum
http://www.exim-users.org and found the answer several times over.

> Is there a way to either 1) whitelist certain hosts so that they can
> get around this enforcement? or 2) remove enforcement for just
> synchronization of waiting on the greeting?

> It would be nice if we could break down the smtp_enforce_sync to allow
> for different portions of the session to be enforced and others not. Or
> would this be asking way too much? Or perhaps a work-around parameter
> of smtp_enforce_sync_except_hosts/domains.

Would either of these suggestions be possible in a future release of Exim?

Mick