Windows Defender and Clam AV
Question asked by jev.sapasap - 8/31/2021 at 8:10 AM
Hi, since windows defender and clam AV are both available.
What is the benefit of turning both on?
Clam AV is consuming lots of memory, can we turn this off and just use the built in Windows Defender.
Any thoughts?

5 Replies

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Kyle Kerst Replied
Employee Post
Hello Jev! The best reason for running both would be false negative scenarios. If one of them doesn't catch it, the hope is that the other will. I hope this helps!
Kyle Kerst
Technical Support Specialist
SmarterTools Inc.
(877) 357-6278
Emily Ward Replied
Employee Post

To add to what Kyle said, you can turn Clam AV off and try using just Windows Defender. While we do suggest using both, it will be up to you, as the server admin, what best fits your needs. Keep in mind, that you can turn Clam AV back on if needed.
Emily Ward
Customer Relations and Partner Specialist
SmarterTools Inc.
(877) 357-6278
jev.sapasap Replied
Thank you Kyle/Emily

echoDreamz Replied
ClamAV protection though is sorta like using aluminum foil for a vest instead of Kevlar…
Sabatino Replied
I use
Windows Defender

With windows defender I had some problems but it seems related to the installation of the operating system (I have recently migrated to the new server and now it seems ok)

For clamAv I have made some corrections

In C: \ Program Files (x86) \ SmarterTools \ SmarterMail \ Service \ Clam \ etc

edit freshclam.conf and added downloads of
(see https://www.securiteinfo.com/services-cybersecurite/anti-spam-anti-virus/improve-detection-rate-of-zero-day-malwares-for-clamav.shtml).
I only added these two signatures, the others give me too many fakes.

also in clam.conf i added
PhishingScanURLs no

Otherwise it was giving me false positives

Now it seems that everything is working fine

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