Author Topic: [Solved] Mail shield certificate not trusted in Outlook  (Read 3848 times)

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Offline Jake IV

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[Solved] Mail shield certificate not trusted in Outlook
« 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?
« Last Edit: June 19, 2021, 07:57:51 PM by Jake IV »

Offline Michael529

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Re: Mail shield certificate not trusted in Outlook
« Reply #1 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
« Last Edit: June 16, 2021, 04:18:55 PM by Michael529 »

Offline NON

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Re: Mail shield certificate not trusted in Outlook
« Reply #2 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.
Main: Win10 Pro 20H2 64bit / Core i5-7400 3.0GHz / 16GB RAM / Avast 21 Premium Beta(Icarus) / Comodo Firewall (testing again)
Mobile: Win10 Pro 20H2 64bit / Core i5-3340M 2.7GHz / 8GB RAM / Avast 21 Free / Windows Firewall Control

Avast の設定について解説しています。よろしければご覧ください。

Offline kathyjoe52

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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.

Offline lukor

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Re: Mail shield certificate not trusted in Outlook
« Reply #4 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

Offline lukor

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Re: Mail shield certificate not trusted in Outlook
« Reply #5 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!

Offline schmidthouse

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Re: Mail shield certificate not trusted in Outlook
« Reply #6 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.
« Last Edit: June 16, 2021, 11:15:18 PM by schmidthouse »
***HP ENVY 15K LT W10 Pro 21H1 64Bit/750GB HD/16GB Ram/Avast Premium 21.9.2491b/Secureline VPN v.5.12.5699b/ADU v.21.3b/ASB v.94.0b/SANDBOXIE-plus/MailWasherPRO
**HP Compaq 8510p LT W10 Pro 20H2 64Bit/1TB HD/8GB Ram/WD/ADU v.21.3b/SANDBOXIE/MailWasherPRO/HotSpot Shield
     
RIP*Dell Inspiron XPsp4 PRO 32Bit/Avast(since 2002)18.8.2356/WP/Comodo FW 3.14/Secureline/Comodo IceDragon v.40
LAYERED SECURITY SOFTWARE

Offline dlpcap

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Re: Mail shield certificate not trusted in Outlook
« Reply #7 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.

Offline mhcadroom

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Re: Mail shield certificate not trusted in Outlook
« Reply #8 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)

Offline chris..

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Re: Mail shield certificate not trusted in Outlook
« Reply #9 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)

Offline kathyjoe52

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Re: Mail shield certificate not trusted in Outlook
« Reply #10 on: June 17, 2021, 01:54:08 PM »
Sounds like it's still being tested and hasn't been released yet. Is that correct?

Offline r@vast

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Re: Mail shield certificate not trusted in Outlook
« Reply #11 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.

Offline Gordon2

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Re: Mail shield certificate not trusted in Outlook
« Reply #12 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.

Offline chris..

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Re: Mail shield certificate not trusted in Outlook
« Reply #13 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

Offline Michael529

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Re: Mail shield certificate not trusted in Outlook
« Reply #14 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.