Hi all ...

I am running Fedora 6 and Sendmail 8.13. I am still a newbie using
sendmail so please excuse me for any questions that u might think is
stupid.

I recently wrote a small php code to send an email. For now i can send
emails to all local accounts only. Let me give an example. Let say my
mail server is 'mail.pointflex.net', i now can send email to all local
users such as u...@pointflex.net, u...@pointflex.net. My problem is
i cant deliver mail to addresses like
u...@hotmail.com,u...@bluebottle.com.

Has this got something to do with sendmail configuration? I really
dont know how to resolve this issue. Can anyone help? Any help is
greatly appreciated.

RoyLQ,

Please make sure that you are not running a open -relay mail server. Please run the command "grep u...@hotmail.com(correct hotmail-id) /var/log/maillog.
You can see in the log , the mail was delivered to a specific IP. Check that IP details, whether it is an abuse.hotmail.com using some sites like "whois" indnsstuff.com.

I think the problem is , since you are running PHP script to send mails ,the other mail servers may consider them as spam, since these mails will travel with an user identity of 48.