Remote Server returned '< #4.7.6 smtp; 451 4.7.6 [internal] STARTTLS required but not advertised>'

Discussion in 'Proxmox Mail Gateway (Deutsch)' started by Florian Bauer, Jun 4, 2018.

  1. Florian Bauer

    Florian Bauer New Member

    Joined:
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    Hallo zusammen,

    seit ca 2 Wochen bekommen wir von einer anderen Maildomaine, ext. Kunde die Emails zum Teil nicht.
    Wir haben nun nachgeforscht um eine Fehlermeldung zu bekommen, diese beinhaltet:

    emailadresse@unseredomain.at
    Remote Server returned '< #4.7.6 smtp; 451 4.7.6 [internal] STARTTLS required but not advertised>'

    -> Remote-Server wäre hier der Proxmox, welche die Mails annimmt.

    Kennt ihr das Problem?

    Liebe Grüße
    Florian
     
  2. tom

    tom Proxmox Staff Member
    Staff Member

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    Ist TLS am Proxmox Mail Gateway aktiviert?
    (Configuration/Mail Proxy/TLS)
     
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