query abt sendmail authentication

[Bill Tangren]

sylvan dacounha wrote:
> Dear All,
>    
>   im sorry about posting this mail as it more a sendmail problem rather then Redhat
>    
>    
>   I have Redhat linux 9 server with sendmail 8.12.5 with pop3 n also imap servers and its workin fine but i hav noticed that when i send messages specially to hotmail or yahoo the mail gets deliverd to junk folder as its been treated as junk mail n not to inbox but mails send from anywhere r received correctly
>    
>   i feel that hotmail , yahoo need authenticaton .. that is popb4smtp
>    
>   appreciate if someone could tell me if authentication is the problem and how would i achieve this with sendmail ..  so the hotmail, yahoo n gmail treat mail as valid domain name n not as junk mail so mail goes to inbox n not to junk mail
>    
>   thnks and really appreciate
>    
>    
>   regards
>    
>    
>   Simon
>    
>    
>

You might want to check to see if your domain is on a black hole list. Try 
looking at http://www.dnsstuff.com. That might be why this is happening.