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Simon HedrenSimon Hedren 

AVG free blocking incoming emails in thunderbird

I've been using thunderbird and AVG free for many years without a problem but suddenly AVG has started blocking incoming emails (I know this is the case because emails arrive when I temporarily disable it). I don't want to have to disable AVG every time I want to check my email: is there a way round this problem?
Priyanga SekarPriyanga Sekar (Sitel)
Hello Simon,

We are currently aware of the issue and our developers are working to analyze the root cause.

Could you disable 'E-mail shield' (Open AVG AntiVirus free > Menu > Components > E-mail shield) and verify the status?

If you are able to access e-mail client, enable E-mail shield component of AVG Antivirus and uncheck the option 'Enable Self Protection module'. To do so, open AVG AntiVirus free > Menu > troubleshooting.

Keep us posted here.
Fred JunqueFred Junque
I'm now having this same Problem with Poppeeper ( for a couple weeks now).
Subjects are received, but when I click to open the body I get Server connection errors.
If I right click avg and turn it off The email body loads fine, when AVG turned back on, back to server connection errors.
-980888528-980888528 (Avast)
Hello Fred, 
Have you tried to turn off "Email shield" and checked the status? 
If not, follow the above steps and let us know its status to assist you further. 
Paul KPaul K
I have one Win7 x64 client on Thunderbird with this problem. Started 19-Feb-18 or 20-Feb-18. This one will connect to sever, ask/recv number of new messages, but nothing downloads. Sending is fine.
-980888528-980888528 (Avast)
We recommend you to contact our Business team to assist you further. 
Use this link: https://support.avg.com/business_contact_form and fill the form. Our Business team will check and get back to you via email. 
Paul KPaul K

  This is not a business product. When I disable 'E-mail Shield', new email can be downloaded. If I uncheck the option 'Enable Self Protection module' when E-Mail Shield is enabled, email cannot be downloaded.
-980888528-980888528 (Avast)
Thank you for the info, Paul. 
Our developers are already working on a fix. We will get back to you once the issue gets fixed. Your patience is much appreciated. 
Fred JunqueFred Junque
There is one other thing I forgot to mention, All new mail is already marked as read. No idea if that is related or not, but it never use to be.
Fred JunqueFred Junque
I can not find the email shield Option under Componets.
I did try unchecking enable self protection, and there is no difference.
Priyanga SekarPriyanga Sekar (Sitel)
Fred, open your AVG Internet Security/AVG AntiVirus Free program > Click 'Web and E-mail Sheild' tile >  click on toggle bar to disable E-mail sheild temporarily ti check the status.

Regarding the issue you had with read receipts, we request you to contact the respective support (e-mail client) to get assistance. 
Fred JunqueFred Junque
Thanks, disabling the E-mail shield does seem to work, and also with that disabled, the emails are no longer marked as read so that problem does seem to be related to AVG and not the email client.

Just to verify with you, this is an issue your developers are working on? I dont want to leave email unprotected for long.
KarthikeyanKarthikeyan (Avast) 
Fred, we have already escalated this case to our developer team and this should be fixed in our next AVG update.

For now, you can disable AVG Email Shield and use your Outlook app.

Your patience is much appreciated.
Lynn EdwardsLynn Edwards
Please fix soon. What is the use of virus protection if you have to turn it off!!
KarthikeyanKarthikeyan (Avast) 
Lynn, we understand your concern. We will make to fix this issue as early as possible.

We appreciate your time and co-operation.
Paul KPaul K
Will an update be posted here when a solution is available?
KarthikeyanKarthikeyan (Avast) 
Yes, Paul. It will be updated in our community page.
Shankara MoorthyShankara Moorthy (Sitel)

Hello everyone. 

I would like to update you regarding the issue where we couldn't send\receive emails with AVG's Email shield turned on. Meanwhile our developers are working on the fix, we have an workaround to fix this issue. This needs advance troubleshooting. Hence, I request you to get in touch with us through individual posts so that we can help you further. Thank you for your patience.

Jose TJose T
Hello everyone.

I have the same problem and I would like to know the solution.

Thanks for advance.
Santhosh PannerselvamSanthosh Pannerselvam (AVG)
Hello Jose,

Our developer team is working on this issue and it will be fixed in our next update.

This issue needs advance troubleshooting. Hence, we request you to get in touch with us through individual posts so that we can help you further.

Thank you for your patience.
Jose TJose T
Thank you for your response.

I do not find how I can contact with you through individual post.
KarthikeyanKarthikeyan (Avast) 
Jose, in the community forum, you can see an option to login.

Once you login to your account, you can see an option create a post. Click on new create and submit a new post.
Ken WKen W
Same problem.  For now I just keep turning my email shield on and off to receive email or check on my isp server.  Just waiting now for a new update... Thanks
-980888528-980888528 (Avast)
Hello Ken, 
We appreciate your efforts.
Please contact our technical support team: https://support.avg.com/support_contact_form?l=en via online chat to perform some troubleshooting steps and check if that helps. 
Paul KPaul K
What is the ETA on the update? Thank you.
Dinesh KrishnanDinesh Krishnan (AVG)
Hi Paul,

Currently, we do not have an estimated time around for the update. It would be released shortly. 

However, we've received a temporary workaround, while the concerned team is working on a fix. In order to help pointing you in the right direction, please write back to us in a separate/individual post. 
Paul KPaul K
I have a workaround in place.
I just installed update 19.3.3084 (19.3.4241.405). This update does not address the original problem.
Fred JunqueFred Junque
What is the work around? I’ve been waiting a few weeks with email shield turned off. I tried using a link above for help, but it won’t accept my info/problem since I’m not paid.
Balasubramanian SBalasubramanian S (AVG) 
Hi Paul,

The fix for the outlook issue is not released to this 19.3.3084 update.
It is still being analyzed and the fix will be released at the earliest.
Your patience is much appreciated.
Fred JunqueFred Junque
What is the Status of this fix? I've had the email shield off for weeks. I havent heard anything and no reply when I previously asked about the work around.
Dinesh KrishnanDinesh Krishnan (AVG)
The concerned team is still working on a fix, Fred. 
In order to help you with the workaround, please reach us in a individual post as informed earlier by our colleague. 
Reason being, it helps us to suggest the appropriate option for you & helps us to know about the product details in your account.
Paul KPaul K
Another update - It appears to be another swing and a miss.
Shankara MoorthyShankara Moorthy (Sitel)
Hi Paul,

I'm sorry to inform you that the issue isn't fixed in latest version. However, I can send an email to connect to our remote team who would perform the workaround. This will allow the outlook application to work as expected even when AVG is enabled. Please communicate with us through a new post to help you further. Appreciate your patience.
Marco SevergniniMarco Severgnini
Hello, I'm experiencing the same issue as above with Thunderbird. With AVG (free verison) email protection turned on, I counldn't see any email in my Inbox. When I disable the check on IMAP4/POP accounts, everything works. My AVG version is 19.6.3098 (2019, June 25). Is this issue stuill unresolved?
Balasubramanian SBalasubramanian S (AVG) 
Hello Marco,

We are sorry for the inconvenience caused and will assist further on this matter.
We request you to get connected with our chat team using this https://support.avg.com/support_tech_chat link who can help further on this matter.
If not, you can create your own post here, so we will be able to see your email address from the record and send further instruction through it.
Thank you.
Chris HampsonChris Hampson
Today (20 07 19) I've started having the same problem Simon had back in February. Emails are loading OK on other devices but work on this PC with Thunderbird only if a) I turn the AVG email protection OFFor  b) I put the email protection ON and uncheck the option 'Enable Self Protection module' as per the February 21 post.  Not very comfortable with either option as it leaves the PC vulnerable.  Is a fix coming? 
Chris HampsonChris Hampson
Turned 'Enable Self Protection module'.back ON and emails again didn't load. Then ran "Repair AVG" and re-started - now emails do seem to load and both 'Enable Self Protection module'. and 'Web and E-mail Sheild' are ON.  Strange ?
Priyanga SekarPriyanga Sekar (Sitel)
Hi Chris, 

We are glad that the issue has been resolved. 
It could be due to some temporary error, you had issues in sending/receiving e-mails. We have released a revamped version of AVG AntiVirus free/AVG Internet Security which should have many hot fixes.
If you need any help, please let us know.
Chris HampsonChris Hampson
Spoke too soon - now Thunderbird won't send emails unless I turn the AVG email protection OFF   grrr!
Priyanga SekarPriyanga Sekar (Sitel)
Hi Chris, 

We are sorry that the issue persists. 
Let us reinstall AVG Internet Security/AVG AntiVirus free and check if that fixes the issue. 
Please use AVG Clear tool to uninstall the program as mentioned here (https://support.avg.com/SupportArticleView?l=en&urlName=Uninstall-AVG-software-Clear-Remover&supportType=home). Then, proceed installing the program from our official website (https://www.avg.com/en-us/installation-files). 
Keep us informed about the status.
James CareyJames Carey
Uninstalling and reinstalling fixed the problem for me until I updated the program again.  The problem returned after the update and the only thing that works, so far, is disabling the email protection.  Also, I noted a problem downloading .exe files via every web browser I had... which literally is about twenty.   I keep getting 1.4 meg files.  I didn't then and still don't have web protection installed and know my system is clean.  The problem only happened when AVG was active.  That problem, corrupt .exe files, seems to be fixed but the email issue continues.  Avast now owns AVG.  If AVG can no longer be trusted to properly protect file operations and email, what good is it?  I have used AVG for about twenty years now and had no major problems with it until they decided to start adding new features and change the interface.  Please make this product something I can trust again.  
Rakshith RajkumarRakshith Rajkumar (AVG)
Hi James,

We apologize for the inconvenience caused.
Please address this query in a separate post so we get enough details to locate your account in our database and assist you accordingly.
Thanks in advance for understanding.
Mike SkyMike Sky
Today I started having the same problem. I cannot send or receive emails through Thunderbird (78.2.2­). When I tried to send emails I get the following message:
Sending of the message failed.
Peer’s certificate has an invalid signature.
The configuration related to smtp.aol.com must be corrected.

If I disable the Email Shield, then all is OK…I can send and receive emails.
I uninstalled AVG and reinstalled a fresh copy. However, with the email shield enabled I still could not send or receive.

When the problem started, nothing had changed about Thunderbird or AVG on my PC…they were both  working fine one minute and next minute I could not send or receive.
Any help will be greatly appreciated.
Rakshith RajkumarRakshith Rajkumar (AVG)
Hi Mike,

We have replied to your original post: https://support.avg.com/answers?id=9060N000000ggs1
Keep up the conversation through single thread in order to get quick assistance.
Thank you.
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