To fix this, work with your DNS hosting provider (your domain registrar, Web hosting provider, or ISP) to set up a correct PTR record for your domain.
If you're using Office 365 to manage your DNS records note that PTR record creation and management isn't supported by the Office 365 interface, in which case you'll have to change your DNS management to a DNS host outside Office 365. Refer to this article for instructions on how to do this:Change how DNS records are managed with Office 365.
Setting up PTR records is not supported by Office 365. Office 365 support will not be able to help you fix these kinds of externally reported errors.
To fix the problem, contact the recipient's email admin and give them the error and the name of the external email server ...
To fix the problem, try one or more of the following: Ask the sender scan their computer for viruses . Ask the sender to ...
To fix this issue, contact the recipient's email admin and ask them to work with their domain registrar (or Web host provider) ...
To fix this, contact the recipient's email admin and ask them to add your email domain to their list of allowed senders. ...
To fix this, work with your DNS hosting provider (your domain registrar, Web hosting provider, or ISP) to set up a correct ...
To fix this, you can change the delivery management setting for the group. Go to Groups . Choose the group you want to check, ...
To fix this, you need the external email address to Office 365. In the Exchange admin center, go to Contacts . Click New ...
To fix this, you need to add the external email address to Office 365. In the Exchange admin center, go to the Contacts page. ...
To fix your Outlook connectivity problems, we'll configure Outlook to use the MAPI over HTTP communication protocol. This ...