Hi,
yesterday I updatet to Dovecot EE version 2:2.2.23.1-1. Now sometimes I see this errors in my logs:
... Apr 18 09:02:19 dovecot1 dovecot: stats: Error: FIFO input error: CONNECT: Duplicate session ID NjcCDoSAFFd/KQAAFMUCeg for user user@domain1.com service lmtp Apr 18 09:04:05 dovecot1 dovecot: stats: Error: FIFO input error: CONNECT: Duplicate session ID rjV1HtCGFFcoogAAFMUCeg for user user@domain2.com service lmtp Apr 18 09:04:30 dovecot1 dovecot: stats: Error: FIFO input error: CONNECT: Duplicate session ID Sqi0IMWAFFeRNQAAFMUCeg for user user@domain3.com service lmtp ...
The error only appears when a mail is sent to 2 ore more recipients concurrently. It's not ciritcal for me, all mails are getting delivered correctly.
Thanks and regards Urban Loesch