1679092 - Mail pop server not reachable after update to 78.5.0

Status: RESOLVED DUPLICATE of bug 1677806

(MailNews Core :: Networking: POP, defect)

Description

[Gert-Jan van der Zwan]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36

Steps to reproduce:

After update to 78.5.0 I was unable to connect to my pop server (no security password used) Downgrading to 78.0 fixed the problem. Tested that new account on private server could be confirmed when testing in new account setup. (did not test correctly in 78.5.0. I did not re-upgrade to 78.5.

Actual results:

Thunderbird reported "Failed to connect to server <servername>"

No emails sent or received.

Expected results:

Be able to get my mail.

Comment 1

[Gert-Jan van der Zwan]

Tested: update to 78.5.0 creates same problem.

Comment 2

[WaltS48 [:walts48]]

Is this Comcast or another account?

See https://support.mozilla.org/en-US/kb/thunderbird-78-faq#w_after-upgrading-to-thunderbird-78-i-cannot-receive-or-send-email-messages

I'm having no problem with my Comcast POP3 account on Windows 10 or Ubuntu Linux.

Comment 3

[Gert-Jan van der Zwan]

I am using an in-house (private) server without a DNS entry.

Comment 4

[Gert-Jan van der Zwan]

Setting the tls security lower doesnt help either. (78.4.30 works great)

Comment 5

[Gert-Jan van der Zwan]

OLDER sever

Comment 6

[mooncake]

I am having this problem too. How do I downgrade? I am on Mac Catalina 10.15.1

Comment 7

[Magnus Melin [:mkmelin]]

You can run an older build from http://ftp.mozilla.org/pub/thunderbird/releases/, then start with --allow-downgrade

Comment 8

[Magnus Melin [:mkmelin]]

I'm pretty sure this is bug 1677806. Try 78.6 once that's out.