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SMTP Exception - Sanity Check

Hi all,

We are running two SG450 Hardware Appliances in Hot Standby (Active/Passive) Mode. Version installed is 9.411-3.

I am trying to permit encrypted e-mails from selective sender addresses.

I created a Exception List in Email Protection > SMTP > Exceptions which skipped Extension Blocking, MIME type checks and Email Encryption for a select list of sender address patterns.

However, when I attempt to test this exception using an approved sender address, the e-mail is still being quarantined.

Under Email Protection > SMTP > Malware, I have the Quarantine unscannable and encrypted content option selected. In general we do want to block this type of material. When I un-tick this option the e-mail is successfully delivered.

Does the manually created Exception List not override the Malware option or have I missed something painfully obvious with this?

Many thanks for your assistance with this.

Best regards,

John P



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  • I don't think you want 'Encryption', John, as that refers to Encryption/Signing done by the Proxy.  You probably want to skip 'Antivirus checking' instead.

    Buuut, why not let the UTM do the decryption so that it can scan for viruses?

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • I don't think you want 'Encryption', John, as that refers to Encryption/Signing done by the Proxy.  You probably want to skip 'Antivirus checking' instead.

    Buuut, why not let the UTM do the decryption so that it can scan for viruses?

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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