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

unable to send emails with 128.2.2 esr

more options

Hello

I am using Thunderbird for a long time. Great app. 

I have a problem with 128.2.2 esr. After upgrading to this version i am unable to send emails with an Office 365 account from my work. Same settings with outlook are working great no problem

when i am sending an email it does nothing... just says sending....if i press cancel i get ..sending of message failed. unable to authenticate to outgoing server smtp. Please check the password and verify the Authentication method in Accounts Settings smtp. (all settings are good)

if i just let the window after a couple of minutes ...i get Sending of the message failed. the message could not be sent because the connection to Outgoing server smtp timed out . try again

windows 10 22 h2 - 128.2.2

thank you in advance

Hello I am using Thunderbird for a long time. Great app. I have a problem with 128.2.2 esr. After upgrading to this version i am unable to send emails with an Office 365 account from my work. Same settings with outlook are working great no problem when i am sending an email it does nothing... just says sending....if i press cancel i get ..sending of message failed. unable to authenticate to outgoing server smtp. Please check the password and verify the Authentication method in Accounts Settings smtp. (all settings are good) if i just let the window after a couple of minutes ...i get Sending of the message failed. the message could not be sent because the connection to Outgoing server smtp timed out . try again windows 10 22 h2 - 128.2.2 thank you in advance

Modified by pop andrei

All Replies (2)

more options
more options

Please direct follow ups to scott168's question link.