Hotmail

Some Hotmail, Outlook, Live and MSN users may find that expected emails do not arrive in their inbox.

If this happens, you can report the issue directly to Microsoft using their support form.

Report the issue with this form:

https://olcsupport.office.com/

Most of the fields on the form are self-explanatory. For the fields below, use the following values.

Issue Title:

Email not delivering

Contact e-mail address (this email must be valid to receive the investigation report) *

This should be from your Hotmail/Outlook account

Outbound IP(s) or range(s):

78.153.200.138

Is your server dedicated or shared?

Shared

Copy and paste any error messages:

Email not delivering

After you submit the form, Microsoft will review the delivery issue on their side and report back.

This is the correct route for reporting delivery problems affecting Hotmail, Outlook.com, Live.com and MSN inboxes.

Updated on: 08/06/2026