Linux

When I send emails from my dedicated server, it is going into people's spam folder. Is there a website or command I can run that will test my domain/server to see if there is a problem? I beleive that I have the PTR record correct, so just trying to find exactly what the issue is.

1) Are you sending to a large list, that is assumed to be spam?
2) Does your message contain words that makes email think it is spam?
3) Are you ending from an email that is normally considered spam?

Where I would start is with the email program the users are utilizing to determine why you are considered spam? Could be as simple as the @_ address not being in their 'accepted' list.

Check the IP address of your mail server here: http://www.spamhaus.org/lookup.lasso