Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.