Thunderbird does not display password box when I check mail

Avast One Avast One for Windows
1

Just installed Avast One on Windows 10 computer. When I ask Thunderbird to get mail, it fails to display the password box, then times out. Any thoughts?

2

If you turn off avast first can you enter the password then?
And then turn avast on?

3

I paused Email Guardian in Avast and sent and received email. I was able to enter the password in the password box for both actions. Normally, I would be able to send and receive emails the rest of the day without re-entering password. But I turned Avast Email Guardian back on and could neither send or receive email (mail timed out both ways).

4

Tried repair and restart?

https://support.avast.com/en-us/article/repair-antivirus/

Just installed Avast One on Windows 10 computer.
And you have removed/uninstalled any previous used antivirus
5

Thanks. 1. I’ll try the repair and report back. 2. I uninstalled Kaspersky Internet Security after I downloaded Avast One. Restart sequence was: uninstall Kaspersky/restart/install Avast/restart.

6

I performed repair and the Thunderbird issue persists.

7

First I don’t use Avast One, but Avast Antivirus for windows free.

I use Thunderbird as my default email client - I don’t have to give any password to collect email

The POP3S protocol uses port 995 and encrypts the connection between the email client and mail server. Email clients usually don't use the name POP3S, but if you use port 995 then your login credentials are transmitted securely. Similarly, IMAP uses port 143 and doesn't support SSL/TLS.

Under Account Actions you can add an email address and enter its data to be able to collect it, that would include the password. If you had done that you wouldn’t need to always add the password. Check and see if that has been entered, if not presumable you should be asked to provide it.

8

Thanks for the suggestion. I changed connection security to SSL/TLS (was STARTTLS) and Port updated to 995. I found one other setting under General/Privacy and Security/Antivirus: I checked “Allow antivirus clients to quarantine individual incoming messages”; it was previously unchecked. Thunderbird is functioning normally now. (I still enter a password when I open it to check and to send mail.)

9

You’re welcome.

10

I seem to have spoken prematurely: the issue arose today with outbound mail, which I may not have tested thoroughly. Perhaps I should continue to apply the setting shown in the second box above under ‘Set up your existing email address’…remember password. I did not see how to access this.

11

I don’t think that is the issue - check out this topic, whilst it is old it may still be valid - https://forum.avast.com/index.php?topic=318206.0

Or this one - https://support.avast.com/en-gb/article/troubleshoot-invalid-antivirus-email-certificate/#pc
Thought the subject is - Troubleshooting email client warnings about invalid server certificates - and you didn’t mention getting this error.

12

After poking around the Thunderbird settings and in Thunderbird email help articles, I realized there is a separate setting under Account Settings for Outgoing Server (SMTP). So as described above for Server Settings, I changed the Connection Security from STARTTLS TO SSL/TLS. This solved the problem

13

Thanks for the update, happy that you now have it working.