Server error: '451 Temporary local problem - please try later' after adding new DNS zone via WHM

[Dmitri Pritsker]

this morning around 10 AM est we have started experiencing the following error message sending email Server error: '451 Temporary local problem - please try later'

We were able to "fix the issue" by turning off 'Sender Verify " in Exim Configuration Manager. But i think if we were just to restart Exim will be the same think.

It work for a while, but we needed to add a new domain DNS zone via WHV Add DNS zone. (we added a new domain name) And it broke again - we have to swith ON or Off 'Sender Verify " in Exim Configuration Manager -it restarts the exim and email works again

Any Idea? was working prior no problem - we were adding lots of new DNS zone before as well - not too sure what changed?

 

[cPanelMichael]

New this morning around 10 AM est we have started experiencing the following error message sending email Server error: '451 Temporary local problem - please try later'

Hello

Could you review /var/log/exim_mainlog and /var/log/exim_paniclog to see if there's any specific output when this happens?

Thank you.

 

[Dmitri Pritsker]

see the exim_maillog

2016-04-29 11:22:19 SMTP connection from (00843ff5.specops.xyz)
[181.174.189.179]:55925 closed by DROP in ACL
2016-04-29 11:22:24 SMTP connection from [75.99.xx.xx]:60406 (TCP/IP connection count = 1)
2016-04-29 11:22:34 SMTP connection from [75.99.xx.xx]:60406 lost
2016-04-29 11:24:18 SMTP connection from [184.149.xx.xx]:20609 (TCP/IP connection count = 1)
2016-04-29 11:24:18 H=toroon45-3096779596.sdsl.bell.ca (DmitriHP4530s)
[184.149.xx.xx]:20609 Warning: Sender rate 17.2 / 1h
2016-04-29 11:24:18 H=toroon45-3096779596.sdsl.bell.ca (DmitriHP4530s)
[184.149.xx.xx]:20609 X=TLSv1:ECDHE-RSA-AES256-SHA:256 CV=no F=<[email protected]> A=dovecot_login:[email protected] temporarily rejected RCPT
<[email protected]>: failed to expand ACL string "${if
eq{${lookup{$sender_address_domain}lsearch*{/etc/userdomains}{$value}}}{$sender_address_local_part}{1}{0}}":
failed to open /etc/userdomains for linear search: Permission denied
(euid=47 egid=12)
2016-04-29 11:24:21 SMTP connection from toroon45-3096779596.sdsl.bell.ca (DmitriHP4530s) [184.149.27.76]:20609 closed by QUIT
2016-04-29 11:24:51 SMTP connection from [74.208.x.xx]:61633 (TCP/IP connection count = 1)
2016-04-29 11:24:52 Warning: No server certificate defined; TLS connections will fail.
Suggested action: either install a certificate or change tls_advertise_hosts option
2016-04-29 11:24:52 Warning: purging the environment.
Suggested action: use keep_environment.
2016-04-29 11:24:52 SMTP connection from [74.208.4.xx]:57965 (TCP/IP connection count = 2)
2016-04-29 11:24:53 SMTP connection from [74.208.4.xx]:58208 (TCP/IP connection count = 3)
2016-04-29 11:24:54 SMTP connection from [74.208.4.xx]:65227 (TCP/IP connection count = 4)
2016-04-29 11:24:55 SMTP connection from [74.208.4.xx]:64873 (TCP/IP connection count = 5)


see exim_paniclog

2016-04-29 11:24:52 Warning: No server certificate defined; TLS connections will fail.

Suggested action: either install a certificate or change tls_advertise_hosts option

2016-04-29 11:26:00 Warning: No server certificate defined; TLS connections will fail.

Suggested action: either install a certificate or change tls_advertise_hosts option


again this happens only after we add the new DNS zone (for new domain) via WHM. This just happened recently - we are adding new domains ( DNS ) all the time. The only way fro our email to work again we would need to turn on (or Off) the "Sender Verify" to save the config and restart EXIM and email working again. Any idea?

 

[cPanelMichael]

Hello

This is addressed on the following thread:

Adding zone changed ownership of /etc/userdomains

Thank you.