I am trying to send an email to 100 members of my fishing club. This email has an attachment with it called: “MBA Member Occupation Summary-15 November 2015”. This attachment is a PDF file and is only 650 KBs.  I have sent this message out before a few months ago with no problems.  When I try sending this message, I keep getting a Windows Live Mail message that says: “Some errors occurred while processing the requested tasks.”

“An unknown error has occurred.

Subject “MBA Member Occupation Summary-15 November 2015

Server Error: 451

Server Response: 451 4.2.0 72.201.32.12 Has exceeded the number of messages allowed per hour and has therefore been blocked for a period of three hours. “

“Message could not be sent because its size exceeded the server’s limit. You use the option, to break messages into smaller parts.

Server Error: 552

Server Response: 552.5.2.0 htEZ1r0030FiOuY01tEZEz.  This message was undeliverable. This message has been found to be a potential spam message, and has therefore been blocked. Please visit (this web site) for more information.

How can I have the Windows Live Mail let me send out the messages I want or need to send out to my friends and others – and in particular the  “MBA Member Occupation Summary-15 November 2015” message?  I do not originate any SPAM messages!

This appears to be the only attachment I cannot send out; other attachments go out OK.