https://medjava.ro/ 2026-04-06T02:16:03+00:00 https://medjava.ro/ https://medjava.ro/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2023-07-04T16:36:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://medjava.ro/doku.php?id=linux:centos:email:check-connectivity&rev=1688488590&do=diff Check SMTP server connectivity Check SMTP SSL/TLS openssl s_client -connect medjava.ro:465 CONNECTED(0000013C) --- Certificate chain 0 s:OU = Domain Control Validated, OU = Globe Standard SSL, CN = medjava.ro i:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Domain Validation Secure Server CA 1 s:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Domain Validation Secure Server CA i:C = GB, ST = Greater Manchester, … text/html 2025-08-13T01:07:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://medjava.ro/doku.php?id=linux:centos:email:dkim&rev=1755047225&do=diff Adding DKIM for New Domain Problem When sending emails from a new domain on existing server, you get DKIM Unaligned because the domain is not configured in OpenDKIM. Solution Steps 1. Add to KeyTable echo "default._domainkey.domain.com domain.com:default:/etc/opendkim/keys/domain.com/default.private" >> /etc/opendkim/KeyTable