trouble with smtp.office365.com

[Sauvenay]

Hi

I am using a office365 email professionnaly. This is an Oauth2. I am using a Win10 22H2. I receive all my emails through Thunderbird (last version).

I installed Kaspersky Premium 3 days ago and had troubles because I needed to put my servers in the authorisation process (Security Option/Network/Trusted adresses); I put it and it worked yesterday.

But today new trouble (I didn't change anything): timed out connection on smtp.office365.com

I tried to find a solution but nothing was adapted. What is your advice?

Thank you

Regards

C. Sauvenay

[Berny]

@Sauvenay Welcome.

Did you try :

1. Flush DNS ?
2. Switch to Cloudflare DNS ?

 

[harlan4096]

Did You correctly add the 2 email server addresses to Trusted Addresses in Scan Encrypted Connections settings?

 

 

Do You have connection in ThunderBird if You exit Kaspersky?

[Sauvenay]

Berny: Flush DNS and Cloudfare DNS: I don't know what it is.

harlan4096: this is what I did, yes →

I tried to suspend Kaspersky: it works. Then I reopen kaspersky: it works now again!

That's quite strange isn't it?

Thanks anyway!