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matthardy
Level 2
October 1, 2024
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Finding specific domain in my instance

  • October 1, 2024
  • 1 reply
  • 727 views

We recently had to change our domain for our current instance due to some changes in policies on what we can use to send out third-party software. And I was wondering if there is a way to get an alert or a report on everytime that old domain is used for an email so that we can find it and change it.

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Best answer by SanfordWhiteman
  1. Deliberately break the DKIM TXT record for that domain (the m1 DKIM selector).
  2. Make sure that domain has a DMARC entry that requires a DKIM signature.
  3. Look at the DKIM reports that come in from that domain, which will note the failed attempts.

1 reply

SanfordWhiteman
SanfordWhitemanAccepted solution
Level 10
October 1, 2024
  1. Deliberately break the DKIM TXT record for that domain (the m1 DKIM selector).
  2. Make sure that domain has a DMARC entry that requires a DKIM signature.
  3. Look at the DKIM reports that come in from that domain, which will note the failed attempts.
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