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!

Avatar for Username

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

outlook.com Mail imap is o.k., SMTP does not work

  • 2 replies
  • 0 have this problem
  • Last reply by o.dreyer

o.dreyer
o.dreyer
more options

I have an email account ...@outlook.de. I haven't been able to send emails for a few days. Email reception works. SMTP-Server: smtp.office365.com Port: 587 STARTTLS OAuth2 Errormessage: Failed to send message. The message could not be sent because the connection to the SMTP server smtp-mail.outlook.com failed. The server is either unavailable or refusing SMTP connections. Please check the SMTP server settings and try again.

I have an email account ...@outlook.de. I haven't been able to send emails for a few days. Email reception works. SMTP-Server: smtp.office365.com Port: 587 STARTTLS OAuth2 Errormessage: Failed to send message. The message could not be sent because the connection to the SMTP server smtp-mail.outlook.com failed. The server is either unavailable or refusing SMTP connections. Please check the SMTP server settings and try again.

Chosen solution

Thank you for your quick response. I had 2 accounts: - old: smtp-mail.outlook.com - new (default): smtp.office365.com I deleted the old SMTP server and the problem is solved.

Read this answer in context 👍 0

All Replies (2)

david
david
  • Top 10 Contributor
more options

Do you have more than one account? I suggest you review your SMTP server settings. Click account settings, then scroll down left side to 'Outgoing Servers (SMTP) and review all settings, as one of them appears to still be set to smtp-mail.outlook.com. If true, that also indicates your account settings pane is pointing to the wrong smtp server.

Helpful?

o.dreyer
o.dreyer Question owner
more options

Chosen Solution

Thank you for your quick response. I had 2 accounts: - old: smtp-mail.outlook.com - new (default): smtp.office365.com I deleted the old SMTP server and the problem is solved.

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.