Avast Free 18.2.2328 and Mozilla Thunderbird

[dlpcap]

After updating Avast Free 3/1/18, I can no longer send outgoing email via Thunderbird (last updated a month ago).  If I uninstall Avast, I can send outgoing email.  If I reinstall Avast, outgoing email via TB still does not work.  The one (temp, I hope) way to send email with current version of Avast is to disable outgoing mail virus check in Mail Shield.  But doesn't seem to be a good long term solution....

[Asyn]

Do you get any error message..?

[dlpcap]

With the new version of Avast Free, outgoing Thunderbird messages time out on smtp.verizon.net output server.  Everytime.  My wife's pc was upgraded to the latest av free on 3/1 and she has the same problem.  If you don't turn off the avast free mail module output mail checking, all outgoing attempts simply time out!  Without the program, the outgoing mail via TB works fine....

I even uninstalled avast free, downloaded the sister program, avg, and it does the exactly the same thing - everything times out.  So now we're back to running avast free (to keep all of the other features) with the outgoing mail switch unchecked.  Potentially NOT good. 
I've been using AVAST for over 20 years.  Never had a significant problem until now....

(Oh, one other thing: temporarily  while av free was uninstalled, I loaded Avira anti-virus.  Outgoing TB mail worked fine while it was loaded.  However, I don't really care for that a/v program.  Much to prefer Avast Free.)

HELP!

[Asyn]

Hi, I forwarded it. Let's see...

[REDACTED]

I posted this same issue.  So far no resolution!

[dlpcap]

Thanks Asyn.

Also -

Woodbj2:

My TB is pointing to the AOL mail system servers for Frontier FIOS (used to be Verizon FIOS here in Texas).

Just curious, if this may be a contributing factor also, if you're doing same?

(A couple of years ago when Frontier bought Verizon FIOS here in Texas, and a couple of other states, that was about the same time that Frontier/Verizon started using AOL as their mail engine....)

[Asyn]

Dev-Info: Thank you, we are aware of similar issue. We will look in it.

[HK]

Hi dlpcap,

do you have any other 3rd party security product (like firewall) which might block connecting to your mail provider?

Thanks in advance,
HK

[dlpcap]

HK: No other resident a/v's running concurrently.

Here's the latest -
After 5 days, AVAST Free Mail Shield for outgoing emails appears to be working again with the Thunderbird mail program.  How? Why? No updates to AVAST nor TB installed by me.  Maybe it indeed had something to do with AOL mail servers, but why would TB work w/out AVAST, and also work with another a/v program I had installed temporarily? Found another party using TB only, and they had similar problems, for what that's worth.   But why the BOLD symptoms noted.   Will keep you informed of further developments as applicable.  Thanks Asyn, woodbj2 very much for your input! 

[HK]

Could you please send me your mail.log (and mail.log.old if available) located in C:\ProgramData\AVAST Software\Avast\log folder?

Regards
HK

[dlpcap]

HK

Here tis.  All that's avail.

[HK]

Thanks a lot, unfortunately the log does not contain much since you uninstalled avast and installed it back again. All I can see is on case where no connection to the smtp server was available:

Cannot connect to SMTP server 152.163.35.8 (152.163.35.8:465), connect error 10060

Generally this error means that avast was blocked by some third party software (e.g. wrongly configured firewall). I've tried to simulate this issue with latest avast release (avast free and avast premier) and latest version of Thunderbird. In each try I was not able to reproduce it. Are you still experiencing the issue?

Thanks
HK

[dlpcap]

Given the problem started after updating to latest AVAST Free version on 3/1, with no other 'changes' (and on 2 pc's) it seemed appropriate to look there for the culprit.  After finally determining that turning off the outbound mail shield, and outgoing mail working again, that seemed logical.  After 5 days, after the uninstalls, installs, etc, turned outgoing mail shield back on.  Outgoing mail working again.  Maybe there was an AOL mail server  (which is what Frontier/Verizon uses) problem, after all.  Still, very strange.  HK, Thanks for your help.