https://wiki.hbscloudservices.com/index.php?action=history&feed=atom&title=Proofpoint_IP_Addresses 2026-05-13T13:32:04Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wiki.hbscloudservices.com/index.php?title=Proofpoint_IP_Addresses&diff=27&oldid=prev 2025-08-26T18:45:22Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:45, 26 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Go back to [<del style="font-weight: bold; text-decoration: none;">https://wiki-stage.hbscloudservices.com/Proofpoint_Essentials </del>Proofpoint Essentials guides] or [<del style="font-weight: bold; text-decoration: none;">https://wiki-stage.hbscloudservices.com/Main_Page </del>Main Page].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Go back to [<ins style="font-weight: bold; text-decoration: none;">[Proofpoint Essentials|</ins>Proofpoint Essentials guides<ins style="font-weight: bold; text-decoration: none;">]</ins>] or [<ins style="font-weight: bold; text-decoration: none;">[</ins>Main Page<ins style="font-weight: bold; text-decoration: none;">]</ins>].</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Proofpoint Inbound Mail (to customer) ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Proofpoint Inbound Mail (to customer) ==</div></td></tr> </table>

Hbsadmin https://wiki.hbscloudservices.com/index.php?title=Proofpoint_IP_Addresses&diff=25&oldid=prev 2025-08-26T18:43:42Z

<p>Created page with &quot;Go back to [https://wiki-stage.hbscloudservices.com/Proofpoint_Essentials Proofpoint Essentials guides] or [https://wiki-stage.hbscloudservices.com/Main_Page Main Page]. == Proofpoint Inbound Mail (to customer) == For SMTP Connections only. Must use port 25. IPv4 Subnets: * US Region: ** 208.56.1.0/25 ** 67.231.152.0/24 ** 67.231.153.0/24 ** 67.231.154.0/24 ** 67.231.155.0/24 ** 67.231.156.0/24 ** 67.231.144.0/24 ** 67.231.145.0/24 ** 67.231.146.0/24 ** 67.231.147.0/2...&quot;</p> <p><b>New page</b></p><div>Go back to [https://wiki-stage.hbscloudservices.com/Proofpoint_Essentials Proofpoint Essentials guides] or [https://wiki-stage.hbscloudservices.com/Main_Page Main Page].<br /> <br /> == Proofpoint Inbound Mail (to customer) ==<br /> For SMTP Connections only. Must use port 25.<br /> <br /> IPv4 Subnets:<br /> <br /> * US Region:<br /> ** 208.56.1.0/25<br /> ** 67.231.152.0/24<br /> ** 67.231.153.0/24<br /> ** 67.231.154.0/24<br /> ** 67.231.155.0/24<br /> ** 67.231.156.0/24<br /> ** 67.231.144.0/24<br /> ** 67.231.145.0/24<br /> ** 67.231.146.0/24<br /> ** 67.231.147.0/24<br /> ** 67.231.148.0/24<br /> ** 67.231.149.0/24<br /> ** 148.163.128.0/19<br /> <br /> == Proofpoint Essentials Email Archive ==<br /> For IMAP Connections only. Must use port 993.<br /> <br /> IPv4 Subnets:<br /> <br /> * US Region:<br /> ** 34.192.199.2/32<br /> ** 52.55.243.18/32<br /> ** 52.54.85.198/32</div>

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