I encountered a email server that requires RDNS query to be successful in order to receive mails.
That leads me to the thought that: If I applied the boardband plans that includes a static IP address, could I use it directly in my email address instead of the domain name? (say email@example.com, replacing the IP with the static IP) If so, what happens if
the server do a RDNS query to an IP address?
Requesting ISPs to add RDNS record often requires service charge, it'll be handy of there's some way to get rid of it, especially if I'm lucky enough to gain a easy-to-remember IP address...
The ISP's I deal with don't charge for DNS changes. It's usually just a simple support request.
Its not posible to send email by ip address.
It is possible, you just have to surround the IP address with square brackets (i.e. firstname.lastname@example.org). I don't think many email providers will accept emails sent from an IP address, though.
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