all host for 'domain.com' has been failing for a long time
Hi ,
We have an isolated problem sending to one domain, this is the error message : (changed the actual domain to domain.com) for privacy
2023-06-11 05:53:06 1q8Hkw-00Fz7Q-2Y <= info@domain1.com H=(cpanelhost.com) [::1]:36628 P=esmtpa A=dovecot_login:info@domain1.com S=861 id=='e073a687db24e2b01ddef9fd595f4c0f@wizkidhosting.com'>e073a687db24e2b01ddef9fd595f4c0f@domain1.comT="Test Mail Message" for user@domain.com
2023-06-11 05:53:09 1q8Hkw-00Fz7Q-2Y SMTP connection outbound 1686477189 1q8Hkw-00Fz7Q-2Y domain1.com user@domain.com
2023-06-11 05:53:10 1q8Hkw-00Fz7Q-2Y ** user@domain.com R=dkim_lookuphost T=dkim_remote_smtp: all hosts for 'domain.com'
Performed the following :
1. Coordinated with domain1.com hosting and they mentioned that the IP's for domain1.com is not blocked
2. Coordinated with domain.com hosting and they mentioned that the IP's for domain1.com is not blocked
3. Configured firewall of domain1 to allow IP block of domain.com
4. Set EXIM port 26 as an alternate port
5. Ran the following commands on domain1.com server
cd /var/spool/exim/db
rm wait-dkim_remote_smtp* retry* wait-remote_smtp*
service exim restart
6. Updated resolv.conf to use Cloudflare DNS
messages to domain.com from domain1.com mail server still gets bounced back
-
Are there MX records for domain.com? dig domain.com MX 0 -
dig infovisionresearch.com MX ; <<>> DiG 9.11.36-RedHat-9.11.36-8.el8 <<>> infovisionresearch.com MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24150 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ;; QUESTION SECTION: ;infovisionresearch.com. IN MX ;; ANSWER SECTION: infovisionresearch.com. 7200 IN MX 0 infovisionresearch.com. ;; Query time: 218 msec ;; SERVER: 1.1.1.1#53(1.1.1.1) ;; WHEN: Sun Jun 11 20:56:21 EDT 2023 ;; MSG SIZE rcvd: 67 Do i need to have an MX record for mandrillapp? 0 -
The alternate port setting for Exim is for mail clients like Outlook or Thunderbird to make a connection to the server when port 25 is blocked on their network. It will not change mail delivery on the system. I would try clearing the Exim database to see if things work well now: /usr/sbin/exim_tidydb -t 1d /var/spool/exim retry > /dev/null /usr/sbin/exim_tidydb -t 1d /var/spool/exim reject > /dev/null /usr/sbin/exim_tidydb -t 1d /var/spool/exim wait-remote_smtp > /dev/null0
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