This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

can't send email from any account

  • 1 reply
  • 1 has this problem
  • 11 views
  • Last reply by Matt

more options

hi guys! big problem... as titles says: I added two accounts (one office365 for work and one riseup.net for my personal) in thunderbird and can receive mails with no problem, but with both accounts I can NOT send emails. I get the error:

".......the connection to the SMTP server mail.riseup.net is expired, try again" ".......the connection to the SMTP server smtp.office365.com is expired, try again"


I'm on latest version of thunderbird. I double checked all my server settings multiple times, no luck. I have also outlook 2016 installed in my pc, and with that both receiving and sending for both accounts work fine.

and with same server settings, I can receive and send emails in k9 mail app in my android phone with both accounts.

I tried disabling the win7 firewall service and norton antivirus, same problem.


could you kindly help?

TIA!

hi guys! big problem... as titles says: I added two accounts (one office365 for work and one riseup.net for my personal) in thunderbird and can receive mails with no problem, but with both accounts I can NOT send emails. I get the error: ".......the connection to the SMTP server mail.riseup.net is expired, try again" ".......the connection to the SMTP server smtp.office365.com is expired, try again" I'm on latest version of thunderbird. I double checked all my server settings multiple times, no luck. I have also outlook 2016 installed in my pc, and with that both receiving and sending for both accounts work fine. and with same server settings, I can receive and send emails in k9 mail app in my android phone with both accounts. I tried disabling the win7 firewall service and norton antivirus, same problem. could you kindly help? TIA!

All Replies (1)

more options

Does your ISP allow you to send mail on a server other than theirs? I hear of US based ISP that have this restriction.