When I'm setting up the ReverseDNS for a server - for mail servers, is it acceptable for it to be the codename for the server? Or does it have to be mail.domain.tld? Like, say my server name was jack.... is jack.mydomain.tld acceptable? Or will it give me problems with MTAs on other hosts accepting my e-mails? It's not just hosting the mail server, but all services including web and MySQL.
ReverseDNS Question
- Thread starter scarlett
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RDO Servers
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Your rDNS records can be set to anything you want. The only thing that makes much difference is mail. Even then, you just have to make sure you're consistent.
i.e. you can set your mail as ethgergreg.domain.com, as long as all of your other mail records are also set the same.
i.e. you can set your mail as ethgergreg.domain.com, as long as all of your other mail records are also set the same.
ElixantTechnology
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Remember to update your exim settings to reflect the RDNS; best practice is to have everything reflect your servers host name. Note that some DNSBL will list you for improper configurations among other things. Be sure a valid A record is pointing to your RDNS [AND] you aren't using a standardized RDNS such as 1.1.1.1.domain.com or 1-1-1-1.domain.com as some DNSBL will list you for this as well.
What I do for my IP blocks is assign a standard PTR such as:
158-69-157-32.in-addr.elixant.net
Not only does this help in indentifying addresses, but also creates a standardized PTR that motivates customers to set their own. The above is *not* recommended if you are meaning to run an email server.
What I do for my IP blocks is assign a standard PTR such as:
158-69-157-32.in-addr.elixant.net
Not only does this help in indentifying addresses, but also creates a standardized PTR that motivates customers to set their own. The above is *not* recommended if you are meaning to run an email server.
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