KSOS certificate problem with Thebat! Email Client

[flaubert]

When I open Thebat! to download the new  mail messages KSOS launches a popup which reads that a certificate problem has been detected in the encrypted connection and offers me either to close the connection or to continue. I have chosen to continue but every time I open Thebat! I notice that the client takes a long time to check the mailboxes. This does not occur if KSOS is uninstalled from the operating system: windows 10 enterprise.
Do you have any ideas on how to fix this?
Thank you!

Greetings

Edited June 13, 2022 by flaubert

[harlan4096]

Welcome to Kaspersky Community.

 

I would add your email servers to Exclusions/Trusted Addresses in Network Settings -> Scan encrypted connections:

 

[flaubert]

Hello @harlan4096 and many thanks for the kind and effective support. To give an example, I mainly use gmail and yahoo: so in the exclusions I have to use the email servers of Gmail and Yahoo: is this correct?

[harlan4096]

Yes, that's right!

[flaubert]

@harlan4096

Thanks to your support, the problem has  been solved.??

Best Regards

[harlan4096]

Great! ?

[Anna M]

Hi, this didn't help me. I added gmail.c om to exclusions. Then I added TheBat to trusted apps. See screenshots. Yet, every time there is this message. It doesn't help that I have to switch to a mouse to click this annoying popup every time I receive new email... I loved TheBat precisely because mouse wasn't needed, and I didn't need to do many clicks to just load an email... please help! 

[harlan4096]

@Anna M: This exlusion is not correct:

 

 

Since gmail.com is not the email server:

 

https://www.hesk.com/knowledgebase/index.php?article=72

 

You should add 2 servers (hosts), 1 for sending and one for receiving messages...

[andrew75]

@harlan4096, g-ec2.images-amazon.com is not a mail server. I think pictures are inserted into the email from this domain.

@Anna M, do you have Windows 7 or Windows 10(11)?

This setting will not work:

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You need to add the program itself to trusted applications, and not a link to it.

[harlan4096]

Quote

g-ec2.images-amazon.com is not a mail server. I think pictures are inserted into the email from this domain.

I know, but maybe adding the 2 hosts gmail servers, that warning will disappear...

[andrew75]

I don't think...
If the @Анна М has Windows 7, then most likely she need to update the root certificates.

Or she needs to add each domain with validation errors to exclusions.

[Anna M]

Hi -- I have Windows 10. Thank you!

Adding each domain will prove to be a major pain given we all normally receive many emails with links to many domains! To be honest, it is a major pain at this moment. The problems started when I upgraded to the new version of TheBat.

Could you please teach me how to add TheBat itself to the trusted programs?

Also: will that mean that I have no email antivirus? 

I added smtp.gmail.com, pop.gmail.com, smtp.mail.ru, pop.mail.ru to the list of trusted addresses. We will see if that helps. 

Thank you again. 

[Anna M]

Confirming: adding pop.* and smtp* did not help. 

[andrew75]

@Anna M, try disabling encrypted connections scan in TheBat:

Open the main application window.

Click the More Tools button.

The Tools window opens.

In the Tools window, go to the Manage applications section.

Click the Application Control link to open the Application Control window.

In the Application Control window, click the Manage applications link to open the Manage applications window.

In the list select TheBat.
Double-click the application name to open the Application rules window.
In the Application rules window, go to the Exclusions tab.
Click on the Do not scan all traffic link and select Do not scan encrypted traffic.

In the Action column, click the icon to open the context menu and select Allow.

Click the Save button.

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