it ONLY occurs in yahoo mail. it ONLY occurs when i reply to a message and that message came from a user of craigslist and so the 'thread' message body contains the term; 'craigslist.org' i can type it or send it in new text. if somebody responds to my rental listing on CL-thier message has CL in the text. if i reply to them-i get blocked unless i take at least 1 letter out of the words 'craigslist.org'(CL) now what? been 4 days now. its NOT virus, software, hardware, cookies/cache/history. ive run norton, spybot, spywaredoctor. restart my computer, cable modem, router. rain dance, boogie woogie, hat toss... the ONLY THING that eliminates the 999 error is censoring CL out of my emails. what i havnt figured out is how to stop yahoo from censoring me. im not MLM/african/money order for 10x amount of sale/cheque writing scammer. i dont multipost, i filter my spam aggressivly, and im still being censored. help! sending yahoo an email only serves to bring out the text bots and does nothing but make me want to reach into my screen and wring a neck not my own. i get the same 'boilerplate' answer all 9 times ive made a complaint. "... virus/spam/crapola... we wont help you..." i us CL to buy and sell old car parts in my loca area-not across country. i also have a rental property that i post on CL when it is open-1-2x/year not every week.... its a duplex so not a lot of turnover... AND it only happens when i repsond to an email that already contains; craigslist.org