Strange thing happend last night. We run a clean double optin/opt mail list. Have run it for years without a problem. Then last night when checking auto bouncers as we were sending a mail slot I noticed a higher than normal ratio of emails being removed as they were flagged as bounced. Checked our software to make sure all was ok, then I checked the bounce list. Over 3500 accounts came back as bounced, all of them hotmail accounts. I can only presume hotmail has suddenly blacklisted either our email or our server network. Anyone else had this problem and if so anything that can be done about it ?
Hell we even had surfers emailing in asking where their mailshots were as we send out free spanking smut daily etc. Help
