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MailSite Fusion is an email server, calendar server, contact server and mobile sync server that works with Outlook 2007, ActiveSync® compatible iPhones, Windows Mobile and BlackBerry smartphones and provides a low cost alternative to Microsoft Exchange |
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MailSite Knowledge Base
rDNS and PTR records
Document #:10509
Synopsis: It is important that a rDNS record (also known as PTR record) is setup for your IP address.More Information: An 'A' record resolves a HostName into an IP. For Example the 'A' record for mail.mailsite.com resolves to 216.34.131.10 A PTR records resolve IP addresses into hostnames. For example the PTR record for 216.34.131.10 resolves to mail.mailsite.com Some mailservers require that the sending server have a PTR record. PTR records are managed within your DNS, and is outside the scope of MailSite Support. You should contact your ISP or DNS provider and ask them to create PTR records for your IP address. AOL for example require that all sending mail servers (MTA's) have a PTR Record. You can use the following lookup tool on their site to verify the status of your IP:http://postmaster.info.aol.com/tools/rdns.html Related:
See these other knowledge base documents:Last revised 2009-10-2 |
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