I have been using my Yahoo account and corresponding regularly without too much difficulty with my boss who uses Hotmail. There is sometimes a slight delay when receiving his email messages to me. However, since Friday (sept. 21) every email I send to him, either by replying or composing a new one, has been returned to me with error messages. "Remote host said: 550 Your e-mail was rejected for policy reasons on this gateway. Reasons for rejection may be related to content with spam-like characteristics or IP/domain reputation problems. If you are not an e-mail/network admin please contact your E-mail/Internet S" There have been no changes - he hasn't listed me as spam, I haven't changed the address, there are no errors in the spelling...it just randomly began and hasn't work since Friday. Can anyone help?

Try your Subject title. Make it worded so it doesn`t look like Spam. Examples could be read on Titles in your Bulk.

Have the Hotmail recipient put you in Address Book. There is a new thing on each message in Hotmail. (Have recipient check you as a trusted source on an open message of yours.)