dovecot - Dec 2022 - OT: Two simultaneous POP3 connections from Outlook

Hello,

I recognize this may be somewhat off-topic, but my search-fu has failed to
provide useful results, so I ask for pointers to further information.

Today, while examining Dovecot logs, I found a case where the Outlook mail
client (probably 2016 or later) on a user's computer opened two
simultaneous, or at least overlapping, POP3 connections to Dovecot.  This did
not go well, naturally.

Warning: Transaction log file .../mail/.imap/INBOX/dovecot.index.log was locked
for 156 seconds (rotating while syncing)

If anyone else has found useful information about this peculiar behavior for an
email client, I would be pleased to receive a pointer in that direction.

Thank you.

Ken

Good morning
this is probably not want you are looking for

Couple of issues

even if you get around the outlook locking issue (unless you are leaving 
on the server but would be flagged that way anyways) pop3 is first come 
first serve.

Outlook when it comes to imap & pop3 its been my experience that 
microsoft just does not support these properly anymore as in favor for 
the exchange protocols.

Outlook 2010 was the last version that kinda worked.

Also Outlook does not support idle for imap making outlook for outlook 
and other clients (like thunderbird) more practical.

for example in the case of imap outlook on large email boxes will just 
cycle forever on a folder sync.

Completly useless.

Just some experience to share with you.


Happy Wednesday !!!
Thanks - paul

Paul Kudla


Scom.ca Internet Services <http://www.scom.ca>
004-1009 Byron Street South
Whitby, Ontario - Canada
L1N 4S3

Toronto 416.642.7266
Main?1.866.411.7266
Fax?1.888.892.7266
Email?paul at scom.ca

On 2022-12-20 9:53 p.m., dovecot-bounces at dovecot.org
wrote:
> 
> Hello,
> 
> I recognize this may be somewhat off-topic, but my search-fu has failed to
provide useful results, so I ask for pointers to further information.
> 
> Today, while examining Dovecot logs, I found a case where the Outlook mail
client (probably 2016 or later) on a user's computer opened two
simultaneous, or at least overlapping, POP3 connections to Dovecot.  This did
not go well, naturally.
> 
> Warning: Transaction log file .../mail/.imap/INBOX/dovecot.index.log was
locked for 156 seconds (rotating while syncing)
> 
> If anyone else has found useful information about this peculiar behavior
for an email client, I would be pleased to receive a pointer in that direction.
> 
> Thank you.
> 
> Ken
> 
> 
>