Hello, I have a problem with a delay in sent messages and I have a question what could be the reason
Could be multiple reasons so provide more information…
Messages arrive to the client with a significant delay, even 2 or two days late
You will not make it easy by saying help my car is broken how to fix it?
Nobody is going to help you then.
Start by checking /var/log/exim4/mainlog
And other log files
- Is this the case for every email send on specific?
- What is the target of the email address
- Any failed attempts?
I have something like this in the logs
2023-09-25 16:59:05 no host name found for IP address 46.148.40.92
2023-09-25 16:59:07 dovecot_login authenticator failed for (localhost) [46.148.40.88]: 535 Incorrect authentication data (set_id=bhishma)
2023-09-25 16:59:08 dovecot_login authenticator failed for (localhost) [46.148.40.82]: 535 Incorrect authentication data (set_id=rmenares)
2023-09-25 16:59:16 no host name found for IP address 46.148.40.66
2023-09-25 16:59:17 dovecot_login authenticator failed for (localhost) [46.148.40.92]: 535 Incorrect authentication data (set_id=f.ns.email)
2023-09-25 16:59:32 dovecot_login authenticator failed for (localhost) [46.148.40.66]: 535 Incorrect authentication data (set_id=arilton)
2023-09-25 16:59:33 1qkn3c-000371-VC malware acl condition: clamd /var/run/clamav/clamd.ctl : unable to connect to UNIX socket (/var/run/clamav/clamd.ctl): No such fil$
2023-09-25 16:59:33 1qkn3c-000371-VC <= [email protected] H=ihv14.internetdsl.tpnet.pl ([192.168.0.196]) [79.189.203.14] P=esmtpa A=dovecot_plain:kasia@sferapolska.$
2023-09-25 16:59:33 1qkn3c-000371-VC => janusz <[email protected]> R=localuser T=local_delivery
2023-09-25 16:59:33 1qkn3c-000371-VC Completed
2023-09-25 16:59:39 no host name found for IP address 46.148.40.107
2023-09-25 16:59:40 1qkn3k-000378-Px malware acl condition: clamd /var/run/clamav/clamd.ctl : unable to connect to UNIX socket (/var/run/clamav/clamd.ctl): No such fil$
2023-09-25 16:59:41 1qkn3k-000378-Px <= [email protected] H=przemkow.bierdeckel.pl [91.223.169.155] P=esmtps X=TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128 $
2023-09-25 16:59:41 1qkn3k-000378-Px => marketing <[email protected]> R=localuser T=local_delivery
2023-09-25 16:59:41 1qkn3k-000378-Px Completed
2023-09-25 16:59:44 no host name found for IP address 46.148.40.111
2023-09-25 16:59:47 dovecot_login authenticator failed for (localhost) [46.148.40.107]: 535 Incorrect authentication data (set_id=lcadmin)
2023-09-25 16:59:50 no host name found for IP address 46.148.40.151
2023-09-25 16:59:52 no host name found for IP address 46.148.40.192
2023-09-25 16:59:52 no host name found for IP address 46.148.40.112
2023-09-25 16:59:55 no host name found for IP address 46.148.40.78
2023-09-25 16:59:57 dovecot_login authenticator failed for (localhost) [46.148.40.111]: 535 Incorrect authentication data (set_id=cdone)
2023-09-25 16:59:58 no host name found for IP address 46.148.40.143
2023-09-25 16:59:58 dovecot_login authenticator failed for (localhost) [46.148.40.151]: 535 Incorrect authentication data (set_id=cynthia)
2023-09-25 17:00:05 dovecot_login authenticator failed for (localhost) [46.148.40.192]: 535 Incorrect authentication data (set_id=jorge)
2023-09-25 17:00:07 dovecot_login authenticator failed for (localhost) [46.148.40.112]: 535 Incorrect authentication data (set_id=french1234)
2023-09-25 17:00:07 no host name found for IP address 46.148.40.13
2023-09-25 17:00:09 dovecot_login authenticator failed for (localhost) [46.148.40.78]: 535 Incorrect authentication data (set_id=ruodlieb)
2023-09-25 17:00:11 dovecot_login authenticator failed for (localhost) [46.148.40.143]: 535 Incorrect authentication data (set_id=kcy)
2023-09-25 17:00:14 dovecot_login authenticator failed for (localhost) [46.148.40.13]: 535 Incorrect authentication data (set_id=therapie)
Check the headers of the message on the receiving side to see where the delay originates.