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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Jake IV on June 16, 2021, 02:42:53 PM

Title: [Solved] Mail shield certificate not trusted in Outlook
Post by: Jake IV on June 16, 2021, 02:42:53 PM
After the latest Avast update I get an error message in Outlook: "The server you are connected to is using a security certificate that cannot be verified. A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider."
The certificate is issued by Avast Web/Mail Shield Untrusted Root
How should I solve this problem?
Title: Re: Mail shield certificate not trusted in Outlook
Post by: Michael529 on June 16, 2021, 04:10:23 PM
I'm getting something similar with Thunderbird. It looks as if new certificates have been added somewhere which are judged invalid.
In Thunderbird there is an override but it is not working consistently with Gmail (pop).
It is unfortunate that this problem has appeared. I wonder if it is the same bug that was reported during beta testing.
Be that as it may, is there a work round please?
Free Version 21.5.2470 running on Window 10 20H2
Title: Re: Mail shield certificate not trusted in Outlook
Post by: NON on June 16, 2021, 04:37:06 PM
I believe this is the bug I reported during beta testing :(

If your mail client have "exceptions" feature, go ahead with it, otherwise you have to turn mail shield off temporarily.
Title: Re: Mail shield certificate not trusted in Outlook-Thunderbird-Windows Live Mail
Post by: kathyjoe52 on June 16, 2021, 04:48:59 PM
New to the Forum. Came here because I'm getting the same msg in Thunderbird and Windows Live Mail. I was able to override in Thunderbird. In Windows Live Mail, I just  hit the button to proceed Yes

Just want to make sure that it's a bug w/the new upgrade and based on the comments, it appears that it is. How do we report to Avast?

Thanks!

P.S. Also added other mail clients to the subject in case others are searching; Hope that's ok.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: lukor on June 16, 2021, 08:23:08 PM
Hi guys, we were integrating certificate processing code between MailShield and WebShield and this must have somehow slipped through the checks. We have seen this in the BETA and fixed it - well, at least that's what we thought!

The team is working on it while I type .... we'll update you here soon.

Lukas
Title: Re: Mail shield certificate not trusted in Outlook
Post by: lukor on June 16, 2021, 10:57:38 PM
Guys, we already have a fix for you. Testing it now if it covers all the cases!
Title: Re: Mail shield certificate not trusted in Outlook
Post by: schmidthouse on June 16, 2021, 11:13:00 PM
I have been getting this notice with each mail account (3 accounts) I use with Thunderbird for the last several weeks.
I have to 'confirm exception' for each account every time I open (execute) Thunderbird. The exception is never saved.
Once I confirm exception then I can retrieve mail.

Nothing happens when 'Get Certificate' is chosen.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: dlpcap on June 16, 2021, 11:35:54 PM
I have the same issue with Thunderbird.  Confirm exception does not work.  If I turn off mail shield I can get mail, BUT, then my 'pre-mail' program, Mailwasher will not receive mail.  Mailwasher works with mail shield on.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: mhcadroom on June 17, 2021, 11:28:17 AM
I have the same problem since an update I think yesterday 6-16-2021, all was fine before that with mail shield on.
All mail into and out of Thunderbird is blocked with mail shield on.
I found a post about adding a certificate but it was above my head. Can I hope this is being addressed?
Can Avast be rolled back?
I'm on 21.5.2470 (build 21.5.6354.561)
Title: Re: Mail shield certificate not trusted in Outlook
Post by: chris.. on June 17, 2021, 01:18:59 PM
Guys, we already have a fix for you. Testing it now if it covers all the cases!
hi,
future update or emergency update already released?
As far as I'm concerned the problem is still present (Thunderbird , W7 64)
Title: Re: Mail shield certificate not trusted in Outlook
Post by: kathyjoe52 on June 17, 2021, 01:54:08 PM
Sounds like it's still being tested and hasn't been released yet. Is that correct?
Title: Re: Mail shield certificate not trusted in Outlook
Post by: r@vast on June 18, 2021, 07:37:48 AM
Sounds like it's still being tested and hasn't been released yet. Is that correct?

Hi,

It will be released soon.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: Gordon2 on June 18, 2021, 01:15:30 PM
Sounds like it's still being tested and hasn't been released yet. Is that correct?

Hi,

It will be released soon.

My version updated to build 21.5.6354.675 this morning and the Mail Shield issue is now resolved in my case.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: chris.. on June 18, 2021, 01:31:21 PM

My version updated to build 21.5.6354.675 this morning and the Mail Shield issue is now resolved in my case.
confirmed for me too ... after reboot
Title: Re: Mail shield certificate not trusted in Outlook
Post by: Michael529 on June 18, 2021, 02:34:06 PM

My version updated to build 21.5.6354.675 this morning and the Mail Shield issue is now resolved in my case.
confirmed for me too ... after reboot
OK here now too but a reboot is essential.
A word of thanks to the Avast team for sorting this.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: corttex on June 18, 2021, 02:57:56 PM
How to update to build 21.5.6354.675
Title: Re: Mail shield certificate not trusted in Outlook
Post by: NightHawke on June 18, 2021, 03:04:31 PM
Same issues here in the states. Disabled mail scanner to get traffic and awaiting update or procedure to re-enable it.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: NON on June 18, 2021, 03:50:06 PM
OK with build .675 I can confirm the issue is resolved now. 8)
On icarus channel this build (uupdate) does not come and still with .439, waiting for .675
Title: Re: Mail shield certificate not trusted in Outlook
Post by: schmidthouse on June 18, 2021, 04:15:25 PM

My version updated to build 21.5.6354.675 this morning and the Mail Shield issue is now resolved in my case.
confirmed for me too ... after reboot
OK here now too but a reboot is essential.
A word of thanks to the Avast team for sorting this.

All working as it should here now.
Thanks, Nice job! :)
Title: Re: Mail shield certificate not trusted in Outlook
Post by: kathyjoe52 on June 18, 2021, 05:04:09 PM
 I still have Version: 21.5.2470 (build 21.5.6354.561) It did not update and I still have the same problem.  What is the process for rebooting?   Just restarting my computer?
Title: Re: Mail shield certificate not trusted in Outlook
Post by: rocksteady on June 18, 2021, 05:18:00 PM
Restart is a reboot, Shutdown then Startup is not a full reboot.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: kathyjoe52 on June 18, 2021, 05:46:38 PM
rocksteady:  Ok! Thanks, it worked--Build 675 loaded and working! Thanks for the refresher on rebooting/restarting  ;)
Title: Re: Mail shield certificate not trusted in Outlook
Post by: dlpcap on June 18, 2021, 06:11:20 PM
Other folks have indicated that an update to version 215.2470 (build 215.6354.561 is available.
One that fixes the Outlook/Thunderbird mail problem.  When I go to update screen, it does not prompt for
a new update.  When I click on 'check for updates' IT STILL SHOWS 215.2470 (build 215.6354.561) as being
the latest version.  The one that supposedly works is 215.2470 (build 215.6354.675)
Title: Re: Mail shield certificate not trusted in Outlook
Post by: schmidthouse on June 18, 2021, 06:19:49 PM
Other folks have indicated that an update to version 215.2470 (build 215.6354.561 is available.
One that fixes the Outlook/Thunderbird mail problem.  When I go to update screen, it does not prompt for
a new update.  When I click on 'check for updates' IT STILL SHOWS 215.2470 (build 215.6354.561) as being
the latest version.  The one that supposedly works is 215.2470 (build 215.6354.675)

Have you 'Rebooted'?
Title: Re: Mail shield certificate not trusted in Outlook
Post by: OrdosAlpha on June 18, 2021, 07:45:36 PM
Not getting the option to download Build 21.5.6354.675 via the Update section, either. Rebooted my PC several times and Build 21.5.6354.561 is still the latest build available.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: DavidR on June 18, 2021, 07:48:52 PM
Not getting the option to download Build 21.5.6354.675 via the Update section, either. Rebooted my PC several times and Build 21.5.6354.561 is still the latest build available.

Have you tried a manual program update (from the tray icon) ?
I just did that and got the latest build with the fix.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: OrdosAlpha on June 18, 2021, 09:51:11 PM
Not getting the option to download Build 21.5.6354.675 via the Update section, either. Rebooted my PC several times and Build 21.5.6354.561 is still the latest build available.

Have you tried a manual program update (from the tray icon) ?
I just did that and got the latest build with the fix.

Tried via the System Tray icon, same thing. Build 21.5.6354.561 is still the latest version available. Even re-downloaded the offline installer, and did a re-install. Build 21.5.6354.561 is the version that's installed.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: DavidR on June 18, 2021, 10:02:25 PM
Well the (manual program update) worked for me, however as I said I started of from avast free 2.4.xxxx.xxx, so I'm surprised it didn't for you.

Others are also reporting they have got 21.5.2470 (build 21.5.6354.675).

Have you done a system restart yet (required for program updates), though I would have expected avast to ask for one.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: GwadaGeek on June 18, 2021, 10:23:29 PM
I have build 21.5.6354.675 installed and no more popup error message "The server you are connected to is using a security certificate that cannot be verified. A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider."
The Avast Add-in is listed as activated but Avast buttons are missing  in my Outlook 2010, how to get Avast tools bar back ?
Title: Re: Mail shield certificate not trusted in Outlook
Post by: corttex on June 18, 2021, 10:24:11 PM
Not getting the option to download Build 21.5.6354.675 via the Update section, either. Rebooted my PC several times and Build 21.5.6354.561 is still the latest build available.
The same thing is happening to me...
Title: Re: Mail shield certificate not trusted in Outlook
Post by: corttex on June 19, 2021, 08:52:11 AM
I found a solution for me... just run online installer, reboot and build is 675
Title: Re: Mail shield certificate not trusted in Outlook
Post by: NON on June 19, 2021, 09:18:53 AM
Some reports indicate a "Repair" will fix the issue (i.e. applying patch).
Open Avast -> Menu -> Settings -> General -> Troubleshooting -> Repair App

After a repair, reboot is recommended.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: pc.net on June 19, 2021, 11:39:10 AM
The new Version 21.5.2470- Build 21.5.6354.675 isn't shown after triggering a manual update.
You have to reboot your machine.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: Asyn on June 19, 2021, 12:58:25 PM
The Avast Add-in is listed as activated but Avast buttons are missing  in my Outlook 2010, how to get Avast tools bar back ?
-> https://forum.avast.com/index.php?topic=235969.msg1555591#msg1555591
Title: Re: Mail shield certificate not trusted in Outlook
Post by: OrdosAlpha on June 19, 2021, 04:50:28 PM
Emergency update kicked in today. Now on Build 21.5.6354.675, and can check my e-mail in Thunderbird without having to disable the Mail Shield.
Title: Re: Mail shield certificate not trusted in Outlook
Post by: Jake IV on June 19, 2021, 05:22:33 PM
Thanks guys 'n gals, it's working again!
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: dlpcap on June 21, 2021, 05:44:58 PM
Thank you for the email fix!
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: lukor on June 22, 2021, 02:23:58 PM
Thanks, guys a lot for confirming the fix. Sorry for the complications with the update process. It gets delivered automatically, but to be applied to a running service the restart is needed.

In Windows 8 and later, Microsoft has introduced a hybrid shutdown, called: Fast startup. It works but logging out the user and then hibernate the machine. Next time all the kernel and services are restored from the saved memory image (the hibernate file) and the user logs in again - essentially restarting all the user-mode apps. This is why "Restart" and "Shutdown and power on again" are not the same. Similar issues can be seen with Windows Updates as well. See here: https://docs.microsoft.com/en-us/troubleshoot/windows-client/deployment/updates-not-install-with-fast-startup (https://docs.microsoft.com/en-us/troubleshoot/windows-client/deployment/updates-not-install-with-fast-startup)

Thanks again,
Lukas.


Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: hardwax909 on November 21, 2021, 08:07:37 PM
I just updated to 21.9.2494 and this is broken again. Anyone else seeing this issue ? Is there a fix on the way ?
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: Scott316 on November 21, 2021, 11:37:21 PM
This has started AGAIN! I am on Avast 21.9.2494 (build 21.9.6698.703).

I'm using the software Postbox v7.0.52 for accessing Outlook.com
 >:(

Screenshot: https://ibb.co/nRW2hMH (https://ibb.co/nRW2hMH)
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: prokopes_ on November 23, 2021, 09:37:41 AM
Thank you for reporting this.

hardwax909, could you send us a screenshot of the error you're getting?

Scott316, can you try importing Avast Mail Shield certificate to Postbox?
-The export from Avast is described here: https://support.avast.com/en-ww/article/Troubleshoot-invalid-email-certificate/
-You can then import the certificate in Postbox > Options > Advanced > Certificates > View Certificates > Authorities > Import...
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: hardwax909 on November 23, 2021, 02:11:16 PM
I tried the insert image button and it didnt let me choose a file. How to I upload an image to this forum ?


Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: Asyn on November 23, 2021, 02:17:29 PM
I tried the insert image button and it didnt let me choose a file. How to I upload an image to this forum ?
Hi, see screenshot.
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: hardwax909 on November 23, 2021, 02:41:54 PM
Here you go, this is for Outlook
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: Scott316 on November 26, 2021, 09:23:30 AM
Ok, I tried that cert. thing. It seems to have helped for now. But seriously, this never used to be an issue. This should be fixed!
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: timmarshall.australia on June 20, 2022, 04:54:04 PM
I'm somewhat offended this is happening (in Thunderbird). You install Avast and then out of the blue you can't send emails.
No explanation from the program. You're just left to worry what's happening.

Then you turn off the mail shield and you can send mail. But doesn't that defeat the purpose?

Avast needs to ensure that this event in the mail program triggers something in Avast that explains what's happening and HOW TO FIX IT.

The app is also detecting Goodsync as having malware and not only that -  CONTINUALLY!
Why does it keep alerting me to stuff it should have already DEALT WITH? I added it as an exception already.

I'm getting close to dumping this app.
Title: Re: [Solved] Mail shield certificate not trusted in Outlook
Post by: Asyn on June 20, 2022, 05:32:15 PM
The app is also detecting Goodsync as having malware and not only that -  CONTINUALLY!
Hi, you can report a suspected FP (File/Website) here: https://www.avast.com/false-positive-file-form.php