Hello I'm a new user, I have used the search function but wasn't able to find a situation like mine.
I am fighting an uphill battle against a crappy hosting company that I can't change from. We have our mail filtered via a Barracuda device (which is working really well) that is on our MX, it then routes good email to the SMTP server. The problem is that the SMTP server needs to be accessible for our users to relay mail through it. Spammers are just doing port scans, finding our SMTP server and sending spam directly to it bypassing the Barracuda on the MX. The SMTP server has Spamassassin 2.63 on it (hosting company wants to charge $200 to put 3.x on it and we can't upgrade it ourselves) 1. Would any legitimate email be sent directly to our IP or is it just spammers who bypass the MX to send spam? I think it would just be spammers as bypassing the MX is probably a violation of the SMTP RFC. 2. Since Spamassassin is on our SMTP server can a rule be created to only allow email to be delivered to the users if it comes from the Barracuda MX? This is with the assumption that email bypassing the MX has to be spam. Keep in mind that I don't have full access to the server. I can put a rule in place and then I need to request the hosting company to restart the spamd. I appreciate any input Thanks, -- View this message in context: http://www.nabble.com/Unique-Blacklist---Whitelist-configuration-or-an-allow-only-list-tf4826902.html#a13810227 Sent from the SpamAssassin - Users mailing list archive at Nabble.com.
