Re: [Exim] SMTP protocol violation and -oX

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Autor: Andreas Metzler
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A: exim-users
Assumpte: Re: [Exim] SMTP protocol violation and -oX
On Mon, Dec 08, 2003 at 10:43:57AM +0100, Oliver Egginger wrote:
> when I call Exim (4.24 + ACL-patch) with -oX \"0.0.0.0.25\"
> everything seems to work normal, but if I launch Exim with -oX
> \"0.0.0.0.25 : 0.0.0.0.465\" it produces the following error message
> in conjunction with evolution 1.4.4 and maybe some different
> clients: SMTP protocol violation: synchronization error (input sent
> without waiting for greeting): rejected connection from
> H=chaos.dvz.fh-giessen.de [192.168.192.85]

[...]

Port 465 is ssmtp, i.e. immediate ssl-handshake on connection (instead
of the standardized STARTTLS command). The client sends fancy
ssl-packets while exim expects plaintext SMTP. - exim barfs.

You have to run a separate daemon on 465 with -tls-on-connect if you
want to offer ssmtp at all, decent clients can do STARTTLS anyway.
                   cu andreas