Hello folks, I am unable to manually whitelist yahoo! mail sender IP addresses since yahoo! does not play well with greylisting.
However I can whitelist gmail, aol, hotmail, rediff and so on since they publish SPF records. Is there a way to determine the IP addresses yahoo! uses for sending mail? I can think of possibly modifying the greyscanner perl script to look for patterns and whitelist. Any ideas? Thanks. -Girish

