3 ms·
It's more likely improper DNS settings. Possibly sending from a server not listed in the MX record and not explicitly allowed by an SPF TXT.
by agildehaus 13y ago
It's more likely improper DNS settings. Possibly sending from a server not listed in the MX record and not explicitly allowed by an SPF TXT.
- TobbenTM 13y agoCorrect. MX Settings OK, SPF not OK.