A Pointer (PTR) record, also called a "reverse DNS" record, links an IP address with a host name. Professional mail servers worldwide check for the presence of PTR records to make sure that mail servers are authentic and that no home computers infected with malware are sending spam. This way, they can refuse your e-mails if there is no PTR record. Follow the steps below to request a PTR record:
- On the website of MX Toolbox, check whether a PTR record exists by entering the fixed external (WAN) IP address of your mail server. "DNS record not found" means that a PTR record does not yet exist for your mail server. If a PTR record exists, you can skip step 2.
- If you send e-mails from a Proximus IP address, then you have to request a PTR record from our DNS masters. For this, you need to provide the name of your mail server (e.g. mail.abc.be) and the fixed external (WAN) IP address of your mail server (e.g. 18.104.22.168). Do you send e-mails from a non-Proximus IP address? Contact the owner of the IP address with this data. You can find the owner of the IP address by surfing to WhatIsMyIP on the computer from which you try to send the e-mails.