When Office 365 tried to send the message to the external receiving server, that server performed a reverse DNS (rDNS) lookup and the lookup failed. The failed rDNS lookup suggests that the PTR record (pointer DNS record type) for the sending domain isn't set up properly.
When I get home now, there isn't a second phase of work at all, because everything has already been done out in the field. ...
When identity and authentication are handled completely in the cloud, you can manage user accounts and user licenses through ...
When Integrated Apps is turned on, users in your organization can allow third-party apps to access their %BRAND_OFFICE_365_SHORT% ...
When malware is detected in any attachment, select whether to delete the entire message or to delete all message attachments. ...
When Office 365 tried to send the message to the external receiving server, that server performed a reverse DNS (rDNS) lookup ...
When OutlookEnableSpoofyEmails=1 as a policy in the registry and your Outlook profile is in Online mode, your client may ...
When people outside of your organization send you email, their email systems don't double-check where to send that email ...
When people outside of your organization send you email, their email systems don't double-check where to send that email ...
When published, labels appear in your users' apps, such as Outlook, SharePoint, and OneDrive. When a label is applied to ...