Author Topic: Avast blocking thunderbird mail  (Read 420 times)

0 Members and 1 Guest are viewing this topic.

Offline leo300

  • Newbie
  • *
  • Posts: 1
Avast blocking thunderbird mail
« on: November 19, 2020, 09:47:27 AM »
I cannot send or receive emails through thunderbird since avast is now suddenly blocking all emails
I get the following message when trying to send
Sending of the message failed.
Peer's certificate has an invalid signature.
The configuration related to ..............(my server) must be corrected


I tried updating avast, then exporting a certificate from avast (but thunderbird won't accept it, saying:
This personal certificate can't be installed because you do not own the corresponding private key which was created when the certificate was requested.


I've looked in the forum and seen endless similar posts going way back, how is it avast is still creating these issues, can anyone suggest a way to fix my issue?
« Last Edit: November 19, 2020, 10:56:49 AM by leo300 »

Offline schmidthouse

  • VIRUS FREE A Long Time
  • Avast Evangelist
  • Starting Graphoman
  • ***
  • Posts: 6829
  • When you think you know, Think Again
Re: Avast blocking thunderbird mail
« Reply #1 on: November 19, 2020, 07:07:01 PM »
***HP ENVY 15K LT W10 Pro 20H2 64Bit/750GB HD/16GB Ram/Avast Premium 21.4.2462b/Secureline VPN v.5.11.5502b/ADU v.21.1b/ASB v.90b/ACP 21.1b/ SANDBOXIE-plus/MailWasherPRO
**HP Compaq 8510p LT W10 Pro 20H2 64Bit/1TB HD/8GB Ram/Avast Premium 21.4.2462b/ADU v.21.1b/ACP 21.1b/SANDBOXIE/MailWasherPRO/HotSpot Shield
     
*Dell Inspiron XPsp4 PRO 32Bit/Avast(since 2002)18.8.2356/WP/Comodo FW 3.14/Secureline/Comodo IceDragon v.40
LAYERED SECURITY SOFTWARE