Why are SMTP emails not getting through?

Question

Mail server

Set up a mail server. What is not there - in addition to the basic SMTP, POP3, IMAP, there is spam protection, antivirus, antispam and electronic digital signature. But there is one problem. POP3 and IMAP work fine, but SMTP works like this: email messages from external addresses to local reach, from local to local too, but from local to external do not. Letters are sent, as evidenced by

logs,

* Учётная запись 'hMail': Соединение с SMTP сервером: trainzcity.myftp.org:587...
[2020-03-19 22:18:48] SMTP< 220 trainzcity.myftp.org ESMTP
[2020-03-19 22:18:48] ESMTP> EHLO smtp.mail.ru
[2020-03-19 22:18:48] ESMTP< 250-smtp34.i.mail.ru
[2020-03-19 22:18:48] ESMTP< 250-SIZE 73400320
[2020-03-19 22:18:48] ESMTP< 250-8BITMIME
[2020-03-19 22:18:48] ESMTP< 250-PIPELINING
[2020-03-19 22:18:48] ESMTP< 250 AUTH PLAIN LOGIN XOAUTH2
[2020-03-19 22:18:48] ESMTP> AUTH LOGIN
[2020-03-19 22:18:48] ESMTP< 334 VXNlcm5hbWU6
[2020-03-19 22:18:48] ESMTP> [USERID]
[2020-03-19 22:18:48] ESMTP< 334 UGFzc3dvcmQ6
[2020-03-19 22:18:48] ESMTP> [PASSWORD]
[2020-03-19 22:18:49] ESMTP< 235 Authentication succeeded
[2020-03-19 22:18:49] ESMTP> MAIL FROM:<[email protected]> SIZE=405
[2020-03-19 22:18:49] SMTP< 250 OK
[2020-03-19 22:18:49] SMTP> RCPT TO:<[email protected]>
[2020-03-19 22:18:49] SMTP< 250 Accepted
[2020-03-19 22:18:49] SMTP> DATA
[2020-03-19 22:18:49] SMTP< 354 Enter message, ending with "." on a line by itself
[2020-03-19 22:18:49] SMTP> . (EOM)
[2020-03-19 22:18:49] SMTP< 250 OK id=1jF0gs-0005G0-Au
* Почта отправлена успешно.

however, they do not reach the destination address. I tried to send to different mail services and to several

clients immediately

* Учётная запись 'hMail': Соединение с SMTP сервером: trainzcity.myftp.org:587...
[2020-03-19 22:18:48] SMTP< 220 trainzcity.myftp.org ESMTP
[2020-03-19 22:18:48] ESMTP> EHLO smtp.mail.ru
[2020-03-19 22:18:48] ESMTP< 250-smtp34.i.mail.ru
[2020-03-19 22:18:48] ESMTP< 250-SIZE 73400320
[2020-03-19 22:18:48] ESMTP< 250-8BITMIME
[2020-03-19 22:18:48] ESMTP< 250-PIPELINING
[2020-03-19 22:18:48] ESMTP< 250 AUTH PLAIN LOGIN XOAUTH2
[2020-03-19 22:18:48] ESMTP> AUTH LOGIN
[2020-03-19 22:18:48] ESMTP< 334 VXNlcm5hbWU6
[2020-03-19 22:18:48] ESMTP> [USERID]
[2020-03-19 22:18:48] ESMTP< 334 UGFzc3dvcmQ6
[2020-03-19 22:18:48] ESMTP> [PASSWORD]
[2020-03-19 22:18:49] ESMTP< 235 Authentication succeeded
[2020-03-19 22:18:49] ESMTP> MAIL FROM:<[email protected]> SIZE=405
[2020-03-19 22:18:49] SMTP< 250 OK
[2020-03-19 22:18:49] SMTP> RCPT TO:<[e-mail]>
[2020-03-19 22:18:49] SMTP< 250 Accepted
[2020-03-19 22:18:49] SMTP> RCPT TO:<[email protected]>
[2020-03-19 22:18:49] SMTP< 250 Accepted
[2020-03-19 22:18:49] SMTP> RCPT TO:<[email protected]>
[2020-03-19 22:18:49] SMTP< 250 Accepted
[2020-03-19 22:18:49] SMTP> DATA
[2020-03-19 22:18:49] SMTP< 354 Enter message, ending with "." on a line by itself
[2020-03-19 22:18:49] SMTP> . (EOM)
[2020-03-19 22:18:49] SMTP< 250 OK id=1jF0gs-0005G0-Au
* Почта отправлена успешно.

but all to no avail.
Please, tell me, what's the matter, what to do and how to solve the proms?

Answer 1

But in essence:
PTR - disgusting ip-176-192-239-59.bb.netbynet.ru
SPF - absent: *** No text (TXT) records available for trainzcity.myftp.org
the domain is absolutely not prepared to be a server for sending messages.

Answer 2

minimum salary - https://en.wikipedia.org/wiki/Sender_Policy_Framework

Answer 3

mail.ru accepts everything from you - so there is only one option - someone somewhere is filtering along the way - and who and where ... look for gmyl in spam. likes to add from there if you don’t have DKIM / SPF / DMARC normally registered

Answer 4

Something is wrong with your settings.
Connect to trainzcity.myftp.org, while SMTP considers itself smtp34.i.mail.ru. Have you bought yourself such a domain? I strongly doubt it.
EHLO is also strange, smtp.mail.ru. Usually they write the hostname of the host from which the connection is made.
The next moment, two different connections, two different letters, and the identification string for the mailpool is identical to id=1jF0gs-0005G0-Au! How is that?
And finally, now look at the SMTP server logs on the topic id=1jF0gs-0005G0-Au, all the perturbations of this letter should be reflected there: in which transport it passed / did not pass, and actually why.

Answer 5

Well, because it’s clumsy for you and you need to fix it, of course, I recommend installing an external mail client through this plugin https://wordpress.org/plugins/smtp-mailer-wp/ , I installed it myself on more than one a site by Word and I know that it helps to easily replace the site's mail with external mail, which of course immediately changes the quality and efficiency of mailings, letters do not even go to spam.