Not recieving emails from icloud or winmail users

Copper Contributor

Relay access denied to anyone sending me email from icloud or winmail accounts.

All of my other email seems to be coming in fine.

Using outlook online office 365



2 Replies
What is the error message recieved when trying to send from those accounts ?
This is the error message:
<>: host[] said: 554
<>: Relay access denied (in reply to RCPT TO command)
Reporting-MTA: dns;
X-Postfix-Queue-ID: D0E0B9201BE
X-Postfix-Sender: rfc822