However, if you require then it is also possible to bypass SMTP authentication for a particular IP address from WHM. Below are the exact steps to do it:
- Login to WHM.
- Click on Exim configuration Editor.
- Under Access list section find Whitelist: Bypass all SMTP time recipient/sender/spam/relay checks
- Click on Edit.
- Provide IP address which you would like to bypass to SMTP authenctication.