Office 365 received a 554 error from an external email server hosted by Mimecast. This is probably because the receiving organization uses Mimecast as their filtering service, and the recipient's address doesn't exist in their Mimecast directory or the recipient's mailbox is unavailable.
Office 365 groups (recommended) are a great way for teams to collaborate by giving them a group email and a shared workspace ...
Office 365 groups are a great way for teams to collaborate by giving them group email and a shared workspace for conversations, ...
Office 365 Instant Trial assistant can automatically set up trial mailboxes for your users. To do this, we need your Office ...
Office 365 is currently configured to use {0} url to authenticate for your organization. We currently resolved your 'Security ...
Office 365 received a 554 error from an external email server hosted by Mimecast. This is probably because the receiving ...
Office 365 received the message that you specified, but couldn't deliver it to the recipient ({0}) due to the following error: ...
Office 365 received the message that you specified, but delivery to the recipient ({0}) has been delayed. We're working on ...
Office 365 received the message that you specified, but it wasn't delivered to the recipient ({0}). That's because an admin ...
Office 365 received the message that you specified, but it wasn't delivered to the recipient ({0}). That's because an admin ...