Why are letters not sent from forms to Bitrix (start)?

Question

1C-Bitrix

E-Mail address is configured by default, in the parameters of the mail template are also configured. Or only the box comes to gmail (does not come to mail, yandex) or does not come at all. SPAM is empty.

Answer 1

you need to register for mx records of the domain in the exceptions the IP address of the server from which the sending is taking place, otherwise the mail.ru server will not skip letters
https://www.estismail.com/blog/sozdat_spf_kak_sdel...
https://yandex.ru/support /pdd/set-mail/spf.html