#< #4.4.1 X-Postfix; connect to FQDNof.example.com [X.X.X.X]:25: Connection timed out> #SMTP#
- HES Activation Key (Example: NM-...)
- HES login ID
- Sample copy that shows the issue. From the HES admin console, go to Logs > Mail Tracking. Select the relevant email and copy the text.
- Non-delivery report from the original sender