John Hall schrieb: > Has anyone else seen entries in their logs like this:
>
> SMTP protocol violation: synchronization error (next input sent too soon):
> rejected "POST / HTTP/1.0"
Yep, they come from time to time.
> Someone has got very confused :)
No, it's someone trying to use a open http proxy for relaying.
When the mailer ignores the first lines of input and does not enforce
pipelining rules, that also works.