We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Trouble sending email

  • 1 reply
  • 1 has this problem
  • 6 views
  • Last reply by Zenos

more options

For the last few days, when I open Thunderbird email, I get the below error. The current operation on "Sent" did not succeed. The mail server for account d######### responded: Unrecognized command ID. Cannot send emails either, get and error box stating: Log-in failed, log-in to server: smtp.windstream.net failed. Can you help.

For the last few days, when I open Thunderbird email, I get the below error. The current operation on "Sent" did not succeed. The mail server for account d######### responded: Unrecognized command ID. Cannot send emails either, get and error box stating: Log-in failed, log-in to server: smtp.windstream.net failed. Can you help.

All Replies (1)

more options

We have had another poster reporting issues with windstream.

https://support.mozilla.org/en-US/questions/1193677

Maybe this is a problem at windstream? Have you raised this with them?