yes sure:
have a main server with cpanel/whm
main.server.tld
by other side i have a vps with scrollout
scrollout.domain.tld
then a hosting account myprotecteddomain.tld, when the mx 0 is pointing to scrollout.domain.tld, and have configured a quarantine inbox locate in the main.server.tld with domain quarantinedomain.tld.
In the main.server.tld i have enable this options:
Allow DKIM verification for incoming messages
Reject DKIM failures
when scrollout.domain.tld resend emails to the quarantine inbox, the main.server.tld bounce as dkim, this message show dkim log:
Jun 19 22:09:21 scrollout postfix/smtp[10877]: 3gvZ4074WQz11HR:
[email protected], relay=quarantinedomain.tld[xx.xx.xx.xx]:25, delay=0.22, delays=0/0/0.15/0.06, dsn=5.0.0, status=bounced (host quarantinedomain.tld[xx.xx.xx.xx] said: 550-DKIM: encountered the following problem validating myprotecteddomain.tld: 550 pubkey_unavailable (in reply to end of DATA command))
by this from scroll out advice to me add exeption for all email check from scrollout server, i added the IP and hostname on:
Sender verification bypass IP addresses [?]
Only-verify-recipient [?]
Trusted SMTP IP addresses [?]
And still blocking the emails, from whm when i disable the option:
Reject DKIM failures [?]
work as well, then if i disable this option when the cpanel account enable it, will not block the emails with dkim configuration faill right?