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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: kos333 on October 23, 2020, 03:31:53 PM

Title: Avast and MS Outlook
Post by: kos333 on October 23, 2020, 03:31:53 PM

I am not sure if this is the right sub-forum to post this but I need some help with the configuration of Avast with my email client.  I have been a long time user of Avast Free and MS Outlook.  Since a week (or more) ago, I started having problems with my email client (ie MS Outlook 2016) not being able to connect to the mail server to retrieve mails.

I had thought that it was some form of problem with the mail server but it took so long and I wondered what was the problem.  I was able to access my mail through webmail but not through the client.  I started doing some research and saw an article stating that the anti-virus may be the culprit.  I wasn't hopeful but I gave it a try and turned off Avast.  Lo and behold, the emails started flowing in. 

I started tinkering with the setting of Avast and was able to narrow it down to Mail Shield.  I did not want to turn off mail shield but that seemed to fix the problem of my mail client being able to access the mail server.  I tried another option of unchecking the scanning of IMAP/POP mails while leaving Mail Shield on and it seems to work as well.

I am unsure now if this is the correct setting or if there is any other correct way to do this.  I have used Avast for so long and have never encountered this until a few weeks ago. 

Can somebody help?
Title: Re: Avast and MS Outlook
Post by: Asyn on October 25, 2020, 06:47:03 PM
- Which version/build of Avast Free..?
- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
Title: Re: Avast and MS Outlook
Post by: DavidR on October 25, 2020, 07:50:31 PM
The Mail Shield works/protects email clients, conventional email programs such as Thunderbird (which I use). 

However, MS Outlook appears to work slightly differently. 

As such there used to be an avast Plug-in for MS Outlook, I don't know if this is still the case (as I don't use it). 

Looking at the Mail Shield settings, there is mention of MS Outlook and that it scans IMAP4 traffic, I don't know if your version of MS Outlook supports IMAP4 or or not.  If not then perhaps that is where the issue lies.
Are there any attachments on the emails your are sending/receiving ?

Something that I had to do with Thunderbird was to import the Avast Security Certificate.  Not sure if you would need to do that or how you would do this in MS Outlook.
Title: Re: Avast and MS Outlook
Post by: kos333 on October 30, 2020, 02:16:19 PM

Thank you for your suggestions.  I kind of ended up fixing the problem.  I tried to disable the mail shield and started receiving emails.  Then only to find the next day, it would stop working again.  Then I found an article saying that one of the main causes of not being able to connect to the IMAP servers of google was the password renewal.  I had enabled 2 factor authentication and maybe something happened with the password.  I eventually ended up resetting all of the passwords and suddenly found the emails flowing back in.  Mail shield was not the problem apparently.  Still not sure though how the disabling of mail shield earlier allowed me to received emails....
Title: Re: Avast and MS Outlook
Post by: Asyn on October 30, 2020, 03:13:20 PM
Interesting, thanks for the feedback.
Title: Re: Avast and MS Outlook
Post by: DavidR on October 30, 2020, 06:09:34 PM
You're welcome, thanks for taking the time to report back.

Ah computers, don't you just love them ;)