Exchange 2007 & PTR recored

asfourcrystal
asfourcrystal used Ask the Experts™
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Dear All

i have a problem with exchange 2007 SP1 & PTR recordes my email server didn't send some emails for yahoo and others domain i try to search more than time on the internet for a solutions and i try a lot of them but it's not solved i contact my ISP to create a PTR recored (reserve DNS) because i read that some email servers didn't recived the mail from you without PTR recored also this is not solve my problem

can anybody answer me what i can do and what is the right way to able to send mails to all  mail servers
i have exchange 2007 SP1
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Commented:
Check out my article here that explains how your DNS should be configured: http://www.experts-exchange.com/articles/Software/Server_Software/Email_Servers/Exchange/Exchange-DNS-Configuration.html 

As for the yahoo side of things you cannot resolve this until your DNS configuration and I have written a blog here on how to do it: http://demazter.wordpress.com/2010/02/11/yahoo-blocking-senders/

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