3 ms·
However you can still check the IP address of the mail server that sent the mail. Some things to look at: 1. Check PTR for IP and verify that the A or AAAA rec
by unkown-unknowns 9y ago
However you can still check the IP address of the mail server that sent the mail. Some things to look at:
1. Check PTR for IP and verify that the A or AAAA record for that name points back to the same IP.
2. Compare with IP address of server that sent previous mail to you.
3. Check SPF records for the domain.
4. Check MX records for the domain. Keep in mind that they might be using different servers for sending than for receiving though and that MX is for receiving.
- stephengillie 9y agoThese sound like good steps to determine if a sender is legitimate. Is there a plugin that already does this for existing email clients?
- deleted 9y ago[deleted]
- d3sandoval 9y agoGoogle gmail and inbox both show this information if you click the "view full message" option on any particular email
- OJFord 9y agoI'm pretty sure GP means Is there a client that runs this check in the background, and either tells you or marks it Spam.