Over the last couple of weeks, I have been noticing an increased number of Out Of Office Spam messages. It looks as though the spammers are signing up for legitimate email accounts and then enabling the out-of-office autoresponse message. They then bombard these accounts with spoofed email addresses which then send out the spam messages. Most of the emails I have seen pass the SPF test as they originate from legitamate mail servers. Does anyone have a clue on how to limit this? Regards, Ali
