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Still Can't send mail after troubleshooting

  • 4 cavab
  • 1 has this problem
  • 4 views
  • Last reply by Matt

Reesa66
Reesa66
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All of a sudden, I keep getting this when trying to send: Alert: An error occurred while sending mail. The mail server responded: Request failed. Mailbox unavailable please check the message and try again

Incoming Mail Server (POP3): pop.verizon.net | Port 995 Outgoing Mail Server (SMTP): smtp.verizon.net | Port 465 SSL enabled

I am able to receive with no problem. I can send mail using Outlook without a problem. Is it time to forget about Tbird and go to Outlook?

I rely on email for my business. :-(

All of a sudden, I keep getting this when trying to send: Alert: An error occurred while sending mail. The mail server responded: Request failed. Mailbox unavailable please check the message and try again Incoming Mail Server (POP3): pop.verizon.net | Port 995 Outgoing Mail Server (SMTP): smtp.verizon.net | Port 465 SSL enabled I am able to receive with no problem. I can send mail using Outlook without a problem. Is it time to forget about Tbird and go to Outlook? I rely on email for my business. :-(

All Replies (4)

Reesa66
Reesa66 Question owner
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More info

kaleidic
kaleidic
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Do you have a reply-to setting? Removing this fixed the problem for me.

Reesa66
Reesa66 Question owner
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That sounds like a solution but I need a reply-to address for my business.

I fixed the problem by not using verizon.net as my default smtp server. I also have a netaddress account and when I switched to that, messages were sent and received without a problem.

So it seems this is a Verizon/Thunderbird issue. Also, it started right after Windows 10 updated.

Matt
Matt
  • Moderator
  • Top 10 Contributor
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Reesa66 said

That sounds like a solution but I need a reply-to address for my business.

No you don't, you only need to set reply to what you want replies directed to an address other than the one sending the mail.

I do however think we can score one for the Yahoo people messing with spam filtering again. (Yahoo/AOL is Verizon) and everything appear to be set to Yahoo standards, so your service is likely to degrade over time further.