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    Resolved Roundcube - SMTP 535 error - Plesk 17.8.11 #2

    Thank You @IgorG, unfortunately after doing all that you suggested the main issue is still present. When I try to send an email via Roundcube I'm getting error "Error SMTP (535)" In maillog I see this: Mar 27 00:55:58 host postfix/smtpd[31776]: connect from localhost.localdomain[127.0.0.1] Mar...
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    Resolved Roundcube - SMTP 535 error - Plesk 17.8.11 #2

    Thank you @IgorG, but I'm not sure if this is the same issue. What I did next was switching to QMail and everything works. After switching back to Postfix, noting was working. I wasn't able to login via Roundcube to my mailbox, but also via other mail clients like Outlook or Thunderbird...
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    Resolved Roundcube - SMTP 535 error - Plesk 17.8.11 #2

    Hi, After updating to 17.8 I couldn't log in to webmail (Roundcube). So I did this: Unable to log in to Roundcube webmail after upgrade to Plesk Onyx 17.8: Connection to storage server failed But now when I try to send an email I'm getting error SMTP 535 Any ideas?
  4. Z

    Plesk 17.8 RTM has been released

    Oh yes, it's probably because my provider has not updated repository: Index of /
  5. Z

    Issue Client mail rejected

    Thanks @Mark Muyskens and @AYamshanov. I did what you suggested but the problem is still there. Greylisting is enabled and client domain is added to the whitelist. So I still don't know what to change to allow mail server without reverse DNS.
  6. Z

    Plesk 17.8 RTM has been released

    I have the option Early adopter release checked but I don't have the option to update from 17.5.3 to 17.8.1. Does anyone know what might be the reason?
  7. Z

    Issue Client mail rejected

    Hi, My client wants to send an email to me but he is receiving a message from MAILER-DAEMON : Subject: Failure notice XX.XX.XX.XX failed on DATA command. Remote host said: / Zdalny host odpowiedzial: 550 5.7.1 Command rejected SSL (def) My maillog: /var/log/maillog:5058:Feb 16 11:49:13 host...
  8. Z

    Resolved 550 5.7.1 Command rejected SSL (def)

    My friend cannot send an email to me because he is getting Failure notice with information: ... failed on DATA command. Remote host said: 550 5.7.1 Command rejected SSL (def) Is this means that there is something wrong with my mail server or his mail server? When I check his domain with...
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