Sent Status Ok, but Wrong.

Hi,

I had an issue with email delivery to Exchange’s server and Outlook from my WP.
However, all seemed to work according to “Check & Log Email” ‘s Sent Status at green.

Fortunately, “Post SMTP Mailer/Email Log” plugin helped to find out that the IP address was in the Banned Sending IP list of Office, for this new website.
Even with the IP and domain allowed in Exchange settings and DNS set, it was blocked.

If this can help others, one day.

Good day.
Max.