How to improve an IP reputation on Senderbase

We just got our own dedicated server within the past 3 weeks..we have sent a total of less than 800 emails to "OPT-In" prospects...we now see we have a poor IP reputation on Senderbase..??? How does this happen and how can we get this changed? Our business depends on sending out an email to prospects who have opted in to receive financial quotes.
Dr-JAsked:
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avilovConnect With a Mentor Commented:
make sure you setup DomainKeys, SPF and rDNS for all SMTP hosts. That would be very first steps
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sysreq2000Commented:
Call those prospects, explain the situation, and recommend that they call their IT people or their ISP's and recommend that they NOT use senderbase, or any other such spam service.

I know they mean well, but the only thing worse than spam is having your legit mail bounced.
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Dr-JAuthor Commented:
Sysreg2000...thanks for the input..I understand your point...however..it is not practical for us to call hundreds if not thousands potentially and explain our issue and ask them to call...one of the reason they want quotes via email is that they don't want to talk with anyone...anyway...I do want to say thanks for your suggestions...Dr. J
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ByrneITCommented:
First: Are these Double Opt-in, TO YOU, addresses? If you bought the list from someone else, or transferred it from another entity, even an affiliate, you are very likely to be considered a spammer. The only generally accepted definition of acceptable bulk commercial e-mail is e-mail from a domain that the recipient has requested from, which has verified the recipient wants to receive e-mail from them.

If you use any other method, you WILL get blacklisted, and not just by senderbase.

It's possible that your targeted user community are looky-loos who know how to use spamtraps, and so used their "spamcop" which is senderbase, addresses. You should purge ANY addresses you ever receive from @Spamcop, and not even bother to verify them, as whoever uses those addresses doesn't really want to get your mail, and is just setting you up. Don't let people register on your site from that domain.

Last, but by no means least, several people have complained that senderbase/ironport/spamcop have been getting a high false positive rate of late, so you just may be running afoul of the running for the door brain rot in the security group @ Cisco, which has been hollowed out lately.

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ByrneITCommented:
A good resource on how to NOT do e-mail marketing is here:

http://mailing-list-services.com/eml/worse-email-practices-for-list-management#more-3
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