>> I would like to increase a spam defense of our server by checking if a >> sender really represents an MX server of his/her organization. So if a >> certain PC is trying to send me an e-mail from [EMAIL PROTECTED] then we >> will check if this person's IP address is within MX servers of >> domain.com, otherwise we'll refuse to accept the mail. >> >> Is it feasible? How can I achieve this? >>
If a domain has set up SPF or SenderID records then you can use those so make sure the emails are coming from the correct places. Thanks Craig -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
