Avast is blocking my emails (Mailbird)

Avast Free Antivirus / Premium Security
1

I installed Avast on a new PC today, and I used the most recent downloader from the official Avast website.
After installing I entered my old serial number for the pro version (licence is valid until June 2019) and Avast accepted it so now it’s running as fully registered version, not in evaluation mode.

I can access the internet just fine.
BUT I cannot receive any emails. I’m using Mailbird as my email client, with several POP3 accounts. It tries to synchronize for a while and then just stops, without any error messages. It cannot send or receive any emails.
When I disable Avast protection for 10 minutes it synchronizes within a few seconds and I get all my emails. So the problem is clearly with Avast and not with my email settings.

I do not want to disable Avast just to get my emails, and I do want it to scan all attachments. However, I don’t want my emails blocked completely.
Please help?!

Edit: I’m on Win 10 Pro

2

Afaik, Avast doesn’t support Mailbird.

3

Really? That would be very bad. I’d rather change my Antivirus software than my email client.
I hope someone will come up with a solution…

4

As you use a paid version, feel free to contact support: https://support.avast.com/contact

5

Strange, I use avast! Free latest version (18.6) and Mailbird, and since the installation day I have had no problems at all receiving / sending emails, or syncing my accounts - without tweaking the WebShield.

6

Hi, thanks for your input, I might be wrong then. As I don’t run Mailbird, I can’t check/confirm it.

7

Thank you, I’ll contact support 8)

8

You’re welcome.

9

Hello Sabi,

Thank you for posting the issue.
Could you please help us to narrow the problem down?
Please try turning the Avast shields OFF one by one - turning OFF of which shield solves the issue?
Also when the issue appears, could you please generate a support package and post the file ID here? Guide: https://support.avast.com/en-ww/article/Submit-support-file (This works best when you turn ON debug logging first in Settings > General > Maintenance, reproduce the issue and then generate the support package.)

Thank you,
Filip