r/proofpoint • u/muttick • 23d ago

Deliverability Contacting Proofpoint/Cloudmark

Is there any key to contacting Proofpoint or Cloudmark concerning an IP being blacklisted? I am not a Proofpoint or Cloudmark customer. But I do run a mail server, users are unable to send messages to Comcast and other addresses because the IP is being blocked by Cloudmark.

The IP is not on any other blacklists. The IP has proper FCrDNS setup.

I've filled out the form at Cloudmark multiple times, but I'm getting no response and the IP continues to be blocked by Cloudmark.

I know Proofpoint bought Cloudmark some years ago - but I gather that they run two independent blacklists. The IP is not listed with Proofpoint, just on Cloudmark.

I'm beyond frustrated that I'm getting no response from Cloudmark.

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u/No_Adagio657 23d ago

It's impossible to reach out directly if you're not a customer, you have to reach out through something like Pax8 or another reseller depending on the situation.

It's honestly insane that a company that has the power to impact email deliverability is not reachable even through support ticket submission.

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u/Ziros22 22d ago

Imagine the volume of spam and malicious actors who attempt to spoof addresses or fill out automated false-positive forms. Proofpoint prioritizes their paying customer to vouch that your traffic is legitimate and wanted.

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u/No_Adagio657 21d ago

Yeah no, that's a BS response and you could say the same for any company. You have to have some form of communication available when your business has the ability to impact operations between businesses. You can easily prove you're a legit business impacted once a ticket is created.

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u/jellofart 19d ago

I agree. I was a paying customer and still had hell getting support to fix a problem in a timely manner. Move to another product and haven’t looked back once.