Hello, All, In addition to doing spam filtering for some of our IMail hosting customers we also do Store and Forward filtering for a few domains. In the past day or so I've had complaints from Store and Forward customers about an increase in spam. When I check the headers of the e-mail they are sending to me I don't see any indication that they e-mail was routed through us and NOT picked up as spam. Instead it looks like the mail was delivered directly to their e-mail servers and did the end around our Store and Forward. The thing is I have no idea how the spammer even knew the direct IP addresses of our customers because those don't show up anywhere in their DNS records. Although I guess they could just be running port scans and checking for responses on port 25 and attempting delivery of spam that way without using DNS lookups. But part of the IMail Store and Forward documentation involves locking down the SMTP server to only accept e-mail of the relaying IP address. I'm 99% sure that we had the customers lock down their incoming e-mail to only accept connections from us but I need to confirm that. In the meantime has anyone noticed an increase in this direct delivery method which basically ignores the current DNS system?
Thanks In Advance, Dan Geiser [EMAIL PROTECTED] ----------------------------------------------------------------------- Sign up for virus-free and spam-free e-mail with Nexus Technology Group http://www.nexustechgroup.com/mailscan --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
