How to set up smtp sending to Bitrix?

Question

PHP

Good afternoon!
There is a site on Bitrix. It is necessary to configure sending of letters through smtp. Moreover, the server is smtp.office365.com with port 587. I installed a free module for sending via smtp, but it does not work. Maybe someone faced such a problem. I'm exhausted, I don't know what to do.
Thanks

Answer 1

1. If the hosting is virtual, sending via smtp may be prohibited on it
2. Perhaps, on the office365 side, you need to enable (or disable) something in the administrator account. For example, to send from a site via smtp via Google Mail for Domains, in the administrator account, you need to disable one of the checkboxes related to security, which by default does not allow sending via smtp from external applications (sites).
3. Some other reasons.
What module? If from the marketplace, contact its developers, it is likely that they have encountered such a problem.
Try to independently implement sending emails using PHPMailer and creating the custom_mail function that Bitrix uses to send emails, if this function is defined. At least with PHPMailer you will be able to see what the mail server is responding to (errors or some additional information).

Answer 2

Module from the marketplace. I'll try with PHPMAiler. Thanks