finally i was able to determine the root cause of the problem, it was due to the user corrupted mbox, the solution was to delete the 1st two lines of the /var/mail/username file, restarted dovecot and whoala, i can now telnet successfully.
This is a well-known bug in the 0.99 series...
It is still highly recommended that you upgrade to 1.0.0 if possible...
yes, partly true,
What 'part'? Both statements I made are true. This *is* a well known bug in the 0.99 series, and you *should* upgrade to 1.0.0 if possible.
but i think no matter what imap/pop server you use as long as it is in mbox, it will get corrupted.
I'm not a fan of mbox, but I hardly think that this is a true statement in general, but I guess I could be wrong.
All I know is, when we were using 0.99, it happened a *lot*... meaning, at least once every other day I had to fix an mbox for someone...
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Best regards,
Charles