Deferred email with remote protocol error in reply

[Superbiji]

On 9/15/06, Hardi Gunawan <hardigunawan at yahoo.com> wrote:
> Hi,
>
> My email server experiencing a delivery problem.
> Here's the log:
> relay=/var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp],
> delay=0, status=deferred (remote protocol error in
> reply from
> /var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp]
> while sending end of data -- message may be sent more
> than once)
>

Have you activate lmtp server?

> Secondly, how do I find out whether the email has
> reached the user (especially with multiple recipients
> in the system).  Can I just do a "find" in the
> /var/spool/imap of a particular user?
>

Using return receipt?