Forum Discussion
SPF Fail for newly shared files?
Somewhere between May 5th and May 15th there was a change for the email notification that gets sent out to recipients upon sharing file from SharePoint Online. Here's the previously sent out mail...
Yeah, I can confirm that:
Authentication-Results: spf=fail (sender IP is 52.169.67.105)
smtp.mailfrom=sharepointonline.com; michev.onmicrosoft.com; dkim=none
(message not signed) header.d=none;michev.onmicrosoft.com; dmarc=none
action=none header.from=sharepointonline.com;
Received-SPF: Fail (protection.outlook.com: domain of sharepointonline.com
does not designate 52.169.67.105 as permitted sender)
receiver=protection.outlook.com; client-ip=52.169.67.105;
helo=RD0003FF263956;
They havent added the sharepointonline.com ranges, but this is supposed to be only a temporary issue and should be resolved when they move to the new EWS-based method. Well, at least for users with ExO mailbox, that is. StephenRice should be able to confirm that.