Tuesday, June 8, 2010

spf ptr reverse dns lookup

we have an application that sends mails to users.

emails sent to hotmail were being automatically redirected to the SPAM folder.

after some little research, we found out that we had to configure an SPF records in out DNS manager...

we did this, and apparently didn't work.

we noticed then, that making a reverse dns lookup to out domain returned a somewhat strange name. we included this name on the PTR part of the record, und alles ok.

we then noticed that /etc/hosts file had this strange name written into it. so we changed it to what it must say: our domain name.

there are many tools to help you write an SPF record.... just google it

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