Can I protect my email from being sent by a third party?

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Alexander Degtyarev2018-02-09 11:10:40

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Alexander Degtyarev, 2018-02-09 11:10:40

Is it possible that when sending by a third party, it was impossible to send mailings from my email? Maybe there are some headers that the mail server checks when sending to make sure that I am the owner of this box?

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2 answer(s)

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Sergey, 2018-02-09
@alexdeg

Not a box, but a domain, maybe?
It depends on the details, if you use mail.ru, yandex.ru public mailboxes, and the spf record check setting is disabled on the destination server, then the destination server will accept a letter with a forged address [email protected] from a server from Thailand.

O

Oleg, 2018-02-09
@402d

Speech for mailboxes on your domain.
But this is not an explicit ban, just anti-spam systems will cut off letters
in SPF records -All
https://habrahabr.ru/post/106589/ - DKIM