i've set up exchange 2013 for the first time and when i log into the browser and send a email to my Microsoft account i get the following error:

BAY004-MC2F50.hotmail.com gave this error:
OU-002 (BAY004-MC2F50) Unfortunately, messages from 86.10.3.44 weren't sent. Please contact your Internet service provider since part of their network is on our block list.

when i send a email from my Microsoft account to my exchange i get the following error:

'Administrator@dragoninfotechs.info' on 27/03/2015 21:04
Server error: '550 relay not permitted'

i can send mail to my gmail account no problems. looks like Microsoft have blocked my ip, but maybe its something i've missed? this is the first time i've set up a exchange server. any feedback would be greatly appreciated.

cheers.
mike.

Please read this:
http://www.spamhaus.org/pbl/query/PBL178079

Hi mike,

Thank you for your question.

We could run the following command to check if the issue persist:

Set-SendConnector <sendconnnectorname> -IgnoreSTARTTLS $true

If other domains are well, we could refer to the following links:

http://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/please-contact-your-internet-service-provider/38318705-fb86-4f8d-9ebe-089c13bae099

https://social.technet.microsoft.com/forums/exchange/en-US/213288f3-b320-479a-b65d-39cafa81adba/mail-delivery-issue

If there are any questions regarding this issue, please be free to let me know. 

Best Regard,

Jim