[Dovecot] lmtp multiple recipients fail

[Boris Lordis]

On Thu, Jul 28, 2011 at 10:06 AM, flylordis flylordis
<flylordis at gmail.com> wrote:
> Remy Zandwijk remy at luckyhands.nl wrote:
>
>>On 28.07.2011 01:15 , flylordis flylordis wrote:
>>> Hello,
>>> I am having a problem with the lmtp delivery of mail addressed to
>>> multiple recipients.  The first recipient receives the mail correctly
>>> but the next recipients do not.  ltmp apparently tries to create a
>>> link from the subsequent recipients' mail store to the first recipient
>>> mail store and fails.  This returns 451 smtp codes to the sender which
>>> then resends at some later time.  Please see below for users jerry,
>>> steve, and mary.  The message to jerry gets written but not steve or
>>> mary:
>>>
>>Are you using Postfix? What are the Postfix values of:
>>
>>transport_destination_concurrency_limit
>>transport_destination_recipient_limit
>>
>>
>>-Remy
>
> We are using sendmail on a couple of MX boxes that are communicating
> directly with dovecot/lmtp on port 24.  Again from the logs in my
> first message the troubling entries are those that look like this:
>
> Jul 27 11:24:42 testmailserver dovecot: lmtp(12412, steve): Error:
> link(/spool/mail/j/jerry/mail/INBOX/u.20423,
> /spool/mail/s/steve/mail/INBOX/.temp.1311791081.P12412Q2M989550.testmailserver.)
> failed: Permission denied
> Jul 27 11:24:42 testmailserver dovecot: lmtp(12412, steve):
> +1IXBeVXME58MAAARoVNxQ: msgid=<201107271824.p6RIOPa5020900 at
> backup.>: save failed to INBOX: Internal error occurred. Refer to
> server log for more information. [2011-07-27 11:24:41]
>
> lmtp seems to be attempting to write a link from one user's mail store
> to another user's mail store.  This only happens on recipients that
> are not first on the recipient list.
>
> Best regards,
> -Boris
>
> PS - Apologies to the list if this mail produces an out of thread
> message as I posted the original message as a non-member (needing
> moderator approval) and I am now a member.
>

Hmm, I am wondering if this particular issue is involved:

http://dovecot.org/pipermail/dovecot-cvs/2010-May/017083.html

Could anyone familiar with it please confirm or not?

Best regards,
Boris