[chheplo]

I have been using Mail-in-a-Box https://mailinabox.email/ successfully for many years now, for both my personal account and my company. The only problem is that occasionally Gmail and Outlook mark my sent email as SPAM to the receiver.

[TMWNN]

>The only problem is that occasionally Gmail and Outlook mark my sent email as SPAM to the receiver.

This is exactly the problem people are talking about!