ip blacklist

Help Me My ip is blacklisted what can i do now my accounts are suspending day by day

I'm using SMTP with sendblaster to send emails. I'm little new to SMTP like stuffs, so my question is: Are the outgoing emails are send from my ip? If so, I think my ip will be blacklisted on mass mailing. If anyone who have experience with SMTP can answer this? Thanks in advance :)

To Mods: I hope this is the right section, if not, please move it. Hi guys, I know a lot of you have web hosting accounts, and quite a few of you have VPSs as well. For those of you that have WHM with an addon called cpHulk Brute Force Protection, you probably get emails 10x a day or more...