We have had an issue where a user's isp has their entire range blacklisted, he is logging into the smtp server to send an email and spamblocker is blocking the email because his ip is on a blacklist. The issue I see here is the sender isnt a smtp server he is simply logging into the smtp server to send email. Given also that some blacklists add all dynamic ip ranges as well is it possible to have spamblocker not check senders ip addresses? maybe something like if the from domain is a local domain hosted on the server spamblocker is bypassed.
For now we have whitelisted the ip address.
For now we have whitelisted the ip address.