ok so i had only gotten like 3 of these in the past year and a half of having a yahoo mail account, and all the sudden i'v been getting a lot of faliure messages. i read a few of them and it, well, i'll just copy one onto here:

Remote host said: 550 SC-001 Mail rejected by Windows Live Hotmail for policy reasons. Reasons for rejection may be related to content with spam-like characteristics or IP/domain reputation problems. If you are not an email/network admin please contact your E-mail/Internet.

so i'v gotten like 7 of these in the past 2 days. and i haven't been doing anything different! i mean, i don't want my friends to think i'm snubbing them by not emailing, i just cant seem to get and email through! it's really adjetating!!!! HELP!!!!!!!!!

The relay is responding with relay denied and also with spam like characteristics.

http://www.eudora.com/techsupport/kb/159...

At this time Yahoo is still having some problems at the moment. If you look you will find lots of people cannot send/receive/delete mail at the moment. Also try using the YAHOO HELP button. Yahoo is there to help use. I use HELP all the time. You can also call Yahoo Hotline 1-866-562-7219. Or this number 1-800-699-2466. And or 1-866-562-7249. The more we BUG Yahoo. Maybe the faster they will FIX THE PROBLEMS.