Good morning,
the interesting part of the delivery message is the following:
> SMTP error from remote mail server after MAIL FROM:<
[email protected]>
> SIZE=140734: host 192.200.200.2 [192.200.200.2]: 550 failed to meet SPF requirements
The sender of the mail is, as you wrote "
[email protected]" but the sending mailserver has the domain "@pinnacle.co.za.
Your mailserver seems to be configured to check the senders adress-domain against the sending mailserver-domain by SPF (Sender Policy Framework) and because the domains din't match the SPF Status is "fail" and your system bounces the mail.
To fix that issue there are several ways:
- the sender has to create SPF DNS records on pinnacle mail server, allowing to send mails for the domain @inhep.com
- you can configure your SPF check settings to not bounce mails with SPF status "fail"