[Dovecot] dovecot, procmail and deliver

[David Lee]

(Using dovecot 1.0 RC7 on Fedora Core 5)


<scene set>

Hitherto we have used UW-IMAP on a "farm" of Linux machines mounting NFS
from a NetApp.  (The UW-IMAP author doesn't like use of NFS, but with
careful use of NFS mount arguments ('noac,actimeo=0' etc.) and trying to
ensure that all activity for a given user takes place within one machine
in the farm, we seem to have been OK.)  We have also used UW-IMAP's
'tmail' (in sendmail.cf) and 'dmail' (from any user procmail recipes), so
that access to the INBOX has been consistently UW-IMAP software.

We are now considering doing a transparent migration to dovecot to improve
performance.

</scene>

---
First: a general question:  To complement the UW->dovecot migration of the
IMAP daemon (reading the INBOX and folders), ought I to do a similar
delivery-side migration from [UW] tmail/dmail to [dovecot] 'deliver'?
It would feel safer this way, but maybe I worry too much...

---
Second: "deliver" seems to add an unconditional "From " line at the start
of each delivery.  From sendmail, using the 'n' flag, "Mlocal F=...n..."
that is OK.  (Although I'm not convinced that "dovecot.deliver", nor its
two-space separator (emphasis on "two") from the following date are
ideal.  Nor, come to that line's lack of "@somewhere".)

But from a procmail recipe, I end up with two "From " lines.  Surely this
is incorrect.  How can this be reduced to one?  Shouldn't "deliver" ensure
that there is only "From " line?

---
Third: Would it be possible for "deliver" to do a "syslog" entry to
confirm final delivery into the destination mailbox, please?  (I could try
and produce a patch, but someone else with more dovecot familiarity could
probably do the job must more quickly and probably also more cleanly!)


(I think that's all for the moment.)



-- 

:  David Lee                                I.T. Service          :
:  Senior Systems Programmer                Computer Centre       :
:                                           Durham University     :
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