Why aren't emails coming?

Question

Yandex

emails are not being received. writes error
-----Original Message-----
From: [email protected]***gd.kz [mailto:[email protected]***gd.kz]
Sent: Wednesday, September 30, 2015 5: 10 PM
To: ***@***gd.kz
Subject: Undeliverable mail: RE: OD Synchronization
Failed to deliver to 'ka***@****self.kz'
SMTP module(domain ***self. kz) reports:
host ***self.kz says:
550 relay not permitted
what to do?

Answer 1

The reason is explicit:
Those. forwarding is prohibited.
It looks like you are trying to send mail to 'ka***@****self.kz' via the host ***self.kz mail server.
It all depends on the settings, but as a rule, in this case, you first need to log in to it or be listed in trusted networks in order to relay messages through it without authorization.

Answer 2

Error 550 Mailbox unavailable.
Description: A 550 response from the SMTP server indicates that the recipient's email address is not on the server. Contact the recipient verbally to get their email address.
Error 550 can sometimes be sent by the Antispam filter. Another case for returning a 550 response would be when the recipient's server is down.

Perhaps the address is incorrect or your message is being blocked by an anti-spam filter.

Answer 3

If you use software (Outlook, TheBat!) look at the section related to authorization on the SMTP server (something like SMTP requires authorization (tick here) then login and password)