Why is the sender indicated on the example.com email?

Question

Network administration

I rent VPS on REG.RU. I use ISPmanager 5 Lite. When sending emails, the sender is specified as example.com . I can't find where to change it. And is it possible to make a common sender for all sites on a VPS?
As I understand it, due to an incomprehensible sender, all letters end up in spam in Yandex, but they don’t come to Google at all

Answer 1

It's amazing that not in Google, not anywhere else there is no answer. As a result, the sender was taken from the php.ini file, where sendmail_path = [email protected] is registered, after changing this email address to the desired one, the problem went away.

Answer 2

If VPS, then you need to install it yourself and configure either an advanced mailer or look for ISP in the settings. The easiest way is to put PHPMailer in the project and there you can specify the sender in the settings and they don’t get into spam if you don’t send a lot.

Answer 3

I had the same crap (