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

Hierdie gesprek is gesluit en in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Cannot send via smtp.office365.com on TCP port 587

  • 1 antwoord
  • 1 het hierdie probleem
  • 5 views
  • Laaste antwoord deur sfhowes

more options

Hi All,

I just added a second Office 365 account to my Thunderbird Profile. That broke the ability to send messages from either account. Thunderbird never sends an SMTP response after the server replies. I removed the second account, deleted both SMTP servers and then restarted Thunderbird and I was able to send again from the first account. I added the second account back, and once again, neither account is able to send. This time, I left the first account at smtp.office365.com and the second one at what it auto-discovered, smtp-mail.outlook.com. I tested this with 52.5.0 and with 58.0b2 (64-bit).

I think this is a bug of some kind, but maybe I'm missing something. Attached are a screenshot of the mail settings, and the packet capture.

Cheers,

Hi All, I just added a second Office 365 account to my Thunderbird Profile. That broke the ability to send messages from either account. Thunderbird never sends an SMTP response after the server replies. I removed the second account, deleted both SMTP servers and then restarted Thunderbird and I was able to send again from the first account. I added the second account back, and once again, neither account is able to send. This time, I left the first account at smtp.office365.com and the second one at what it auto-discovered, smtp-mail.outlook.com. I tested this with 52.5.0 and with 58.0b2 (64-bit). I think this is a bug of some kind, but maybe I'm missing something. Attached are a screenshot of the mail settings, and the packet capture. Cheers,

All Replies (1)

more options