| Situation | Emails being delivered to Office 365 are getting rejected do to SPF check. Office 365 is seeing the IP of Proofpoint Essentials as the sending server's IP. |
| Solution |
1. Disable SPF check on Office 365 or 2. Add SPF record as recommended by Microsoft |
Disable SPF check on Office 365
The setting is located at Exchange admin Center > protection > spam filter > double click Default > advanced options > set SPF record: hard fail: off
Add SPF record as recommended by Microsoft
Microsoft suggests that the SPF of Proofpoint Essential gets added to the domain's SPF
| SPF: "v=spf1 a:dispatch-us.ppe-hosted.com ~all" |
Carlos Rios
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