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Block E-Mails to specific recipient

mfischer
Hi!

We have the following E-Mail Server Setup:
Incoming: Remote SMTP -> Sophos UTM 9.305-4 -> Internal Mailserver
Outgoing: Internal Mailserver -> Sophos UTM 9.305-4 -> Remote SMTP

What I need to do is block incoming E-Mails from remote SMTP to a specific internal address (e.g. block messages from remote to group@mydomain.com).

Is that possible?

Thanks, Mike


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  • 0
    This is not possible on UTM at this time.
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  • 0
    Mike, I have the nasty flu going around, so I'm not sure I understand. Is it ALL external email and just to one person?

    Cheers - Bob

    Sorry for any short responses.  Posted from my iPhone.
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0
    Not possible in UTM i think.

    if you have an Exchange Server set up a transport rule which deletes the mails for the specific adress.

    greets

    zaphod
    ___________________________________________

    Home: Zotac CI321 (8GB RAM / 120GB SSD)  with latest Sophos UTM
    Work: 2 SG430 Cluster / many other models like SG105/SG115/SG135/SG135w/...

  • 0 in reply to BAlfson
    Mike, I have the nasty flu going around, so I'm not sure I understand. Is it ALL external email and just to one person?

    Cheers - Bob

    Sorry for any short responses.  Posted from my iPhone.


    Yes, that's correct.
  • 0 in reply to zaphod
    Not possible in UTM i think.

    if you have an Exchange Server set up a transport rule which deletes the mails for the specific adress.


    Thanks for all your answers. No, we don't use Exchange - we use GroupWise.
  • 0
    Likely possible via direct manipulation of the exim configuration in /var/chroot-smtp/etc/.  Making changes survive configuration regeneration and updates might not be straightforward.

    Check with your reseller or Sophos support first:  it is almost certainly outside their comfort zone.

    Existing feature request: Mail Protection: Recipient Blacklist
  • 0 in reply to teched_01
    Likely possible via direct manipulation of the exim configuration in /var/chroot-smtp/etc/.  Making changes survive configuration regeneration and updates might not be straightforward.

    Check with your reseller or Sophos support first:  it is almost certainly outside their comfort zone.

    Existing feature request: Mail Protection: Recipient Blacklist


    Thanks a lot! I will try that - config files are much more my thing than the webgui [:D]

    Already voted for that feature request.

    Mike
  • 0
    Please keep us informed on what works (and what doesn't work) in your endeavors to bring this functionality to your UTM.
  • 0
    Almost back to normal from the flu bug though still not 100%, so my idea may not correspond to what you want.  I think the solution to your problem is, on the 'Email Addresses' tab in Active Directory, delete the user's SMTP addresses for your public domain. 

    Cheers - Bob

    Sorry for any short responses.  Posted from my iPhone.
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    Almost back to normal from the flu bug though still not 100%, so my idea may not correspond to what you want.  I think the solution to your problem is, on the 'Email Addresses' tab in Active Directory, delete the user's SMTP addresses for your public domain. 

    Cheers - Bob

    Sorry for any short responses.  Posted from my iPhone.


    Seems he uses Novell Groupwise, so there will be no e-mail-adresses tab in active directory and maybe no active directory at all [:D]

    greets

    zaphod
    ___________________________________________

    Home: Zotac CI321 (8GB RAM / 120GB SSD)  with latest Sophos UTM
    Work: 2 SG430 Cluster / many other models like SG105/SG115/SG135/SG135w/...

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