Guest User!

You are not Sophos Staff.

Thread Info
  • State Suggested Answer
  • Locked Locked
  • Replies 5 replies
  • Answers 1 answer
  • Subscribers 3 subscribers
  • Views 1549 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

SPF Return-Path oder From Check?

Florian Bartsch

Moin zusammen,

kurze Nachfrage zum Thema SPF.

Aktuell hat uns ein Dienstleister eines Kunden darüber informiert, dass eventuell beim SPF Check nicht die "Return-Path" sondern die "From" Adresse geprüft wird, weshalb die Sophos weitergeleitete Mails fehlerhaft abweist?

 

Der Dienstleister des Kunden nutzt SRS (Sender Rewriting Scheme).

Kann da was dran sein oder sollte die UTM garantiert den "Return-Path" Eintrag verwenden?

 

Danke im Voraus für jede Rückmeldung und Hilfestellung!

LG,

Flo



This thread was automatically locked due to age.
Parents
  • 0

    SRS should prevent SPF failures.   

    You need the SMTP log from the UTM that blocked the message, and from the system that forwarded the message.   Also check the non-delivery report received by the user that sent the message.   

    • One possibility is that the forwarding system has a problem in its SPF record.   
    • Another possiblity is that UTM rejected the message for another reason, and an SPF failure was assumed.
    • A third possiblity is that SRS was not applied to the message when it was forwarded.
    • A bug in UTM seems the least likely, as I expect it would have been discussed in this forum.
Reply
  • 0

    SRS should prevent SPF failures.   

    You need the SMTP log from the UTM that blocked the message, and from the system that forwarded the message.   Also check the non-delivery report received by the user that sent the message.   

    • One possibility is that the forwarding system has a problem in its SPF record.   
    • Another possiblity is that UTM rejected the message for another reason, and an SPF failure was assumed.
    • A third possiblity is that SRS was not applied to the message when it was forwarded.
    • A bug in UTM seems the least likely, as I expect it would have been discussed in this forum.
Children
No Data
Unfiltered HTML