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outlook.office365.com time out when sending email.

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  • 1 has this problem
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  • Last reply by emboemail

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Had it working initially, then I removed the Add-On for exchange emails and then decided to go back and add the Add-on and continue to use thunderbird. Now I can't sent emails with the exchange account deleted. Nothing has change as far as virus protection or any setting on my computer. I simply deleted the Add-On and then a few minutes later added it back. Re-added the exchange email via the auto setup process just as I had before and now it won't send emails. Image is what I get as far as a time out message. ExQuilla for Exchange is the Add-On.

Had it working initially, then I removed the Add-On for exchange emails and then decided to go back and add the Add-on and continue to use thunderbird. Now I can't sent emails with the exchange account deleted. Nothing has change as far as virus protection or any setting on my computer. I simply deleted the Add-On and then a few minutes later added it back. Re-added the exchange email via the auto setup process just as I had before and now it won't send emails. Image is what I get as far as a time out message. ExQuilla for Exchange is the Add-On.
Attached screenshots

Chosen solution

iamjayakumars said

Could you please check your Office 365 setting in Thunderbird. SMTP server: smtp.office365.com port: 587 Authentication method: normal password Connectivity Security: STARTTLS


I had check that and actually it was set correctly. HOWEVER I did discover what was finally the problem. First let me say I didn't do anything to change this. I was simply wanting to send an email. I tried and it gave me the response I said above. I tried looking in where you were suggesting and even just tried playing around with those settings and nothing changed. Then I uninstalled and re-installed Thunderbird several times. For what ever reasons I don't understand I don't think it every completely uninstalled. Even when in the regit and removed mozilla from there. But when I would re-install Thunderbird my accounts were there already as if I never uninstalled. Finally I deleted all accounts in thunderbird. Then I STILL had outgoing SMTP server as the exchange server. The one associated with the office365. Seeing the word default was a clue to what was going on. I then adding an email account (one only) and I then added a second account and made the first email account the default and BAM that was the issue. Somehow the default outgoing server was changed from what ever it was on the very first installation to the office365 server. Again, I didn't do this. I didn't even know how or where this stuff existed. I then added my other email accounts and tested the send function and it worked. If I have the office365 server as the default for outgoing mail it hangs up. But as long as I have a gmail or other account as the outgoing server it works fine. I still get email from my office365 account and can send email as well to that account.

For whatever reason the office365 server isn't working. And, as I stated, I didn't change this to begin with, it literally changed without my imput. But as of this moment Thunderbird is working as it should and all "seems" to be ok.

Hope this makes sense to you and those with similar problems.

Thanks for being there to try to help!!!  :)

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Could you please check your Office 365 setting in Thunderbird.

SMTP server: smtp.office365.com port: 587 Authentication method: normal password Connectivity Security: STARTTLS

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iamjayakumars said

Could you please check your Office 365 setting in Thunderbird. SMTP server: smtp.office365.com port: 587 Authentication method: normal password Connectivity Security: STARTTLS


I had check that and actually it was set correctly. HOWEVER I did discover what was finally the problem. First let me say I didn't do anything to change this. I was simply wanting to send an email. I tried and it gave me the response I said above. I tried looking in where you were suggesting and even just tried playing around with those settings and nothing changed. Then I uninstalled and re-installed Thunderbird several times. For what ever reasons I don't understand I don't think it every completely uninstalled. Even when in the regit and removed mozilla from there. But when I would re-install Thunderbird my accounts were there already as if I never uninstalled. Finally I deleted all accounts in thunderbird. Then I STILL had outgoing SMTP server as the exchange server. The one associated with the office365. Seeing the word default was a clue to what was going on. I then adding an email account (one only) and I then added a second account and made the first email account the default and BAM that was the issue. Somehow the default outgoing server was changed from what ever it was on the very first installation to the office365 server. Again, I didn't do this. I didn't even know how or where this stuff existed. I then added my other email accounts and tested the send function and it worked. If I have the office365 server as the default for outgoing mail it hangs up. But as long as I have a gmail or other account as the outgoing server it works fine. I still get email from my office365 account and can send email as well to that account.

For whatever reason the office365 server isn't working. And, as I stated, I didn't change this to begin with, it literally changed without my imput. But as of this moment Thunderbird is working as it should and all "seems" to be ok.

Hope this makes sense to you and those with similar problems.

Thanks for being there to try to help!!!  :)