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I can not send mail through Mediacom

  • 2 replies
  • 1 has this problem
  • 2 views
  • Last reply by rustyp

dcathome
dcathome
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I can not send mail through Mediacom. Contacted Mediacom support and was told it is an email client issue, not theirs.

Error Login to server smtp.mediacombb.net with username dcathome failed.

Sending of the message failed. Failed due to unexpected error 80004005. No description is available. The message could not be sent using Outgoing server (SMTP) smtp.mediacombb.net for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again.

Name Thunderbird Version 68.10.0 Build ID 20200629235513 Update Channel release User Agent Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 OS Windows_NT 10.0 Launcher Process Enabled

(imap) mail.mediacombb.net:993 SSL

WINDOWS 10 PRO

Security Software Type Name Antivirus Windows Defender Antivirus Antispyware Firewall Windows Firewall

The last message that went out was at 11:30 this morning.

Subject: https://www.facebook.com Date: Wed, 15 Jul 2020 11:30:50 -0500 From: Don <****@mchsi.com> To: Don <****@gmail.com>

I can not send mail through Mediacom. Contacted Mediacom support and was told it is an email client issue, not theirs. Error Login to server smtp.mediacombb.net with username dcathome failed. Sending of the message failed. Failed due to unexpected error 80004005. No description is available. The message could not be sent using Outgoing server (SMTP) smtp.mediacombb.net for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again. Name Thunderbird Version 68.10.0 Build ID 20200629235513 Update Channel release User Agent Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 OS Windows_NT 10.0 Launcher Process Enabled (imap) mail.mediacombb.net:993 SSL WINDOWS 10 PRO Security Software Type Name Antivirus Windows Defender Antivirus Antispyware Firewall Windows Firewall The last message that went out was at 11:30 this morning. Subject: https://www.facebook.com Date: Wed, 15 Jul 2020 11:30:50 -0500 From: Don <****@mchsi.com> To: Don <****@gmail.com>
Attached screenshots

All Replies (3)

sfhowes
sfhowes
  • Top 25 Contributor
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They suggest port 587 with SSL/TLS security. Normally, port 587 uses STARTTLS and port 465 uses SSL/TLS, but if you first change the security to SSL/TLS, then type in 587 for the port, see if sending works.

dcathome
dcathome Question owner
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Thanks for the suggestions but it did not work. I tried changing just the port to 587 and exited Thunderbird. Signed back in and sending still failed. Tried changing to STARTTLS 587 and it still failed. I should have added on the original post that I also have 2 Gmail accounts that works fine. The problem is with my 2 Mediacom accounts. Mediacom said it wan't their problem because I can go to their Webmail site and send out messages. It just stopped working on Thunderbird today.

rustyp
rustyp
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I have a similar problem I discovered today, I can get emails from Mediacom but can not reply or send new emails, when I try to send it ask for my password I enter my password and it rejects the password.

Mediacom help had me use the Mediacom webpage email client and I could send emails using that so they said not a Mediacom problem its a Thunderbird problem.

I tried to send using 3 different Mediacom accounts none can send how ever I can send emails using a mail.com email account on the same installation of Thunderbird to my Mediacom email addresses.

Something strange is going on I am guessing Mediacom changed something someplace that is asking for a password and the password is not being accepted.