This occurs only when sending messages with attachments from Outlook/Hotmail to a single domain outside of Microsoft (tonalrefraction.com).  Messages without attachments are delivered without any problems.  After reading your FAQ's it seems possible that my account may have been either compromised or spoofed.  In the meantime I have taken steps to further secure my account.  I am just an end-user and am unable to find all the information to complete your support request form.  For example I don't use telnet...
This occurs only when sending messages with attachments from Outlook/Hotmail to a single domain outside of Microsoft (tonalrefraction.com).  Messages without attachments are delivered without any problems.  After reading your FAQ's it seems possible that my account may have been either compromised or spoofed.  In the meantime I have taken steps to further secure my account.  I am just an end-user and am unable to find all the information to complete your support request form.  For example I don't use telnet...
I cannot send emails to MYSELF at my own hotmail account, from my WORK account.

I am trying to send to my own hotmail.com  account from my gsconsultants.net account.

I get messages like this (in my GSconsultants.net email as bounce-backs)  SO FRUSTRATING!!!!

----- The following addresses had permanent fatal errors -----
<--------@hotmail.com>

----- Transcript of session follows -----
... while talking to mx1.hotmail.com.:
>>> MAIL From:<---------@gsconsultants.net> SIZE=90249 BODY=8BITMIME
<<< 421 RP-001 (COL0-MC1-F36) Unfortunately, some messages from 209.17.115.55 weren't sent. Please try again. We have limits for how many messages can be sent per hour and per day. You can also refer to http://mail.live.com/mail/troubleshooting.aspx#errors.
... while talking to mx2.hotmail.com.:
>>> MAIL From:<-------@gsconsultants.net> SIZE=90249 BODY=8BITMIME
<<< 421 RP-001 (COL0-MC1-F45) Unfortunately, some messages from 209.17.115.55 weren't sent. Please try again. We have limits for how many messages can be sent per hour and per day. You can also refer to http://mail.live.com/mail/troubleshooting.aspx#errors.
... while talking to mx4.hotmail.com.:

 ----- The following addresses had permanent fatal errors -----
<000000000000000000000000>
(reason: 550 SC-001 (COL0-MC2-F18) Unfortunately, messages from 211.29.132.190 weren't sent. Please contact y...ock list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.)

----- Transcript of session follows -----
... while talking to mx1.hotmail.com.:
>>> MAIL From:<ooooooooooooooooooooooo> SIZE=2347
<<< 550 SC-001 (COL0-MC2-F18) Unfortunately, messages from 211.29.132.190 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
554 5.0.0 Service unavailable

can you please help me