Hi,
Mark Alley wrote on 17.10.24 at 14:50:
https://community.mimecast.com/s/article/email-security-cloud-gateway-
mimecast-smtp-error-codes <https://community.mimecast.com/s/article/
email-security-cloud-gateway-mimecast-smtp-error-codes>
It's in there. Search for "DKIM sender invalid".
indeed - but my signing isn't broken...
The signing works, except to Mimecast. I just had an e-mail, same SMTP
user, same from, same recipient. Same sending MX, same receiving MX,
both in terms of hostname and IP. First mail went through, second mail
got bounced, one minute later, with DKIM failure. That doesn't seem to
make any sense.
Florian
_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop
