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how to make recipient verification with callout work between UTM 9 and Exchange 2010?

computersupport

Hello, 

We are receiving a lot of emails to non existent addresses through UTM. I have Recipient Verification enabled With Callout, but it does nothing. UTM still sends the emails to our Exchange server. If the addresses doesn't exist, Exchange just issues a NDR to the postmaster account. But I want emails to be reject by UTM. 

I'm wondering if I'm missing a configuration? On UTM, I have SMTP Protection enabled in Simple Mode. We receive emails for a couple of domain names. Is there anything that I need to configure on Exchange? I have Exchange 2010 SP3. 

Any help is greatly appreacited! Thanks!



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  • 0

    have tried several times to use verification with callout.. but cant get it running correctly with exchange 2010..


    with an exchange 2010 sp3 its easier to use verify in active directory.
    configure an ad-server first and then the utm ask ad for vaild email-adresses.. works without problems.

    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 zaphod

    Thanks for your reply!

    Our users have several email aliases, do you know if Recipient Verification with Active Directory, will be able to check for aliases besides the user's primary email address? I know that when I open a user object in Active Directory it only shows their primary email address and no aliases. 

  • 0 in reply to computersupport

    it should work with more than one 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/...

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