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Cannot Send with Thunderbird

I have been using Cox email for over 40 years and most of that time I have used Thunderbird as my email program.

Cox just switched to enhanced security server settings and I have changed both incoming (POP) and outgoing (SMTP) settings according to instructions.

I now cannot send email from Thunderbird. I just get the message to enter new password and when I do, iget the message that

Login to server smtp.cox.failed.

Incoming mail is fine.

  • I have the same problem.  Cox told me to go to Thunderbird which I did.  They like Cox only refer you to various web sites but do not provide a method to get a personal answer.  I have given up.  There are a lot of similar comments on the internet about this problem so you would think someone would fix it.

    In addition to the message you talk about I got a message that said Status: connected to with a green bar but it never finished.

  • False Alarm! I contacted Cox support a second time and they now tell me that their outgoing server has gone down and they don't know when it will be up again.

    I guess this question is now resolved.

  • Just for the record, I also use Thunderbird and I'm having the exact same problem. I get the message to enter new password. Then I get another message that login to server failed.

  • Well I use Thunderbird on my Windows 10 laptop and I also have Mail on my Apple iPad Air.  I can send mail to a single person and I can also send to several people but I have to enter them one at a time and I can't use the groups that I send to every day.  My smaller groups are line 20 people and the larger groups are like 75 people and I can't be adding one name at a time to get one e-mail out.  The ticket number on this is CU1000006012666 and they said it would take 24 to 72 hours to fix.  I worked in IT and if we had a problem on a new system we did not let our customers suffer through outages and reduced productivity we switched back to the old system where it was working for everybody and fixed the new system before we brought it back online.  I am paying Cox too much money every month to have to put up with this and if this is not fixed by late tomorrow I may look into going somewhere else.

  • But I still can send to a single person so the server has to be still working?????????????"