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Dear Experts,<br />
<br />
My clients and I tried to send emails to proofpoint customers but they get deferred or delayed.<br />
<br />
I have done a blacklist check and our IP address is not blacklisted.<br />
<br />
Is there anyway to contact proofpoint and inform them about this and get it resolved?
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Dear Experts,

My clients and I tried to send emails to proofpoint customers but they get deferred or delayed.

I have done a blacklist check and our IP address is not blacklisted.

Is there anyway to contact proofpoint and inform them about this and get it resolved?

Proofpoint

Various techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) vs. not rejecting all spam (false negatives) - and the associated costs in time and effort. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.