[BlueOnyx:25914] DKIM

[Richard Sidlin]

Bit of advice please. I have 3 x BlueOnyx Servers in this scenario.

1 x Primary DNS only – 5210R
1 x POP3 Server only – 5210R
1 x SMTP Server only – 5210R

On the POP3 server, I have followed Michael’s instructions, enabled DKIM and in the virtual site I enabled OpenDKIM. It produced 3 x DKIM aliases, a Hostname of DNS TXT Record -  default._domainkey and the TXT record.

I added a TXT record on the DNS server.

I didn’t know whether the Hostname of DNS TXT Record should go in the Host Name section but did add it plus I then added the full key in the Text Record.

Emails sent via this domain on the SMTP server does not appear to use the DKIM key. I have changed any settings on the SMTP server and this is the output from an email relaying through this server.

Jan 11 18:08:05 smtp sendmail[1432344]: STARTTLS=server, relay=cpc123404-stev9-2-0-custxx.9-2.cable.virginm.net [xx.29.49.36], version=TLSv1.2, verify=NO, cipher=ECDHE-RSA-AES256-GCM-SHA384, bits=256/256
Jan 11 18:08:05 smtp sendmail[1432344]: AUTH=server, relay=cpc123404-stev9-2-0-custxx.9-2.cable.virginm.net [xx.29.49.36], authid=smtp, mech=LOGIN, bits=0
Jan 11 18:08:05 smtp sendmail[1432344]: 30BI84rL1432344: from=timing at xxxxonline.uk<mailto:timing at xxxxonline.uk>, size=20217, class=0, nrcpts=1, msgid=002e01d925e7$a73769c0$f5a63d40$@xxxxonline.uk<mailto:002e01d925e7$a73769c0$f5a63d40$@xxxxonline.uk>, proto=ESMTPSA, daemon=MSA, relay=cpc123404-stev9-2-0-custxx.9-2.cable.virginm.net [xx.29.49.36]
Jan 11 18:08:05 smtp opendkim[1212727]: 30BI84rL1432344: no signing table match for 'timing at xxxxonline.uk'
Jan 11 18:08:05 smtp opendkim[1212727]: 30BI84rL1432344: no signature data
Jan 11 18:08:05 smtp sendmail[1432344]: 30BI84rL1432344: Milter insert (1): header: DKIM-Filter:  OpenDKIM Filter v2.11.0 smtp.helpinternet.com 30BI84rL1432344
Jan 11 18:08:05 smtp sendmail[1432347]: STARTTLS=client, relay=gmail-smtp-in.l.google.com., version=TLSv1.3, verify=OK, cipher=TLS_AES_256_GCM_SHA384, bits=256/256
Jan 11 18:08:06 smtp sendmail[1432347]: 30BI84rL1432344: to=rich.sidlin at gmail.com<mailto:rich.sidlin at gmail.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=140217, relay=gmail-smtp-in.l.google.com. [142.250.13.26], dsn=2.0.0, stat=Sent (OK  1673460486 bn21-20020a056000061500b00273909db252si11939354wrb.602 - gsmtp)

Advice appreciated. Thanks 😊

Rich

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