nanog mailing list archives
Re: Time to check the rate limits on your mail servers
From: up () 3 am
Date: Thu, 3 Feb 2005 12:18:22 -0500 (EST)
On Thu, 3 Feb 2005, Raymond Dijkxhoorn wrote:
One additional thing that I think wasnt mentioned in the article - Make sure your MXs (inbound servers) are separate from your outbound machines, and that the MX servers dont relay email for your dynamic IP netblock. Some other trojans do stuff like getting the ppp domain nameThat, on the other hand, gets you into trouble with rather stupid Spam filters, that only accept mails from a server, if that server is also MX for the senders domain. Yes, this is stupid, but that does not change the fact, that these setups are out there.Start using authenticated SMTP for this.
Until the next bot implemented co-opts the pop3 client, or simply hacks the password from the pop3 client (how strong is that encryption?). James Smallacombe PlantageNet, Inc. CEO and Janitor up () 3 am http://3.am =========================================================================
Current thread:
- Re: Time to check the rate limits on your mail servers, (continued)
- Re: Time to check the rate limits on your mail servers Suresh Ramasubramanian (Feb 03)
- Re: Time to check the rate limits on your mail servers Raymond Dijkxhoorn (Feb 03)
- Re: Time to check the rate limits on your mail servers up (Feb 03)
- Re: Time to check the rate limits on your mail servers Patrick W Gilmore (Feb 03)
- Re: Time to check the rate limits on your mail servers Joe Maimon (Feb 03)
- Re: Time to check the rate limits on your mail servers J.D. Falk (Feb 03)
- Re: Time to check the rate limits on your mail servers Kevin (Feb 03)
- Re: Time to check the rate limits on your mail servers Michael . Dillon (Feb 03)
- Re: Time to check the rate limits on your mail servers Nils Ketelsen (Feb 03)
- Re: Time to check the rate limits on your mail servers Raymond Dijkxhoorn (Feb 03)
- Re: Time to check the rate limits on your mail servers up (Feb 03)
- Re: Time to check the rate limits on your mail servers John Levine (Feb 05)
- Re: Time to check the rate limits on your mail servers Suresh Ramasubramanian (Feb 03)
- Re: Time to check the rate limits on your mail servers Rich Kulawiec (Feb 03)
- Re: Time to check the rate limits on your mail servers Gadi Evron (Feb 03)
- Re: Time to check the rate limits on your mail servers Raymond Dijkxhoorn (Feb 03)
- Re: Time to check the rate limits on your mail servers Gadi Evron (Feb 03)
- Re: Time to check the rate limits on your mail servers Raymond Dijkxhoorn (Feb 03)
- Re: Time to check the rate limits on your mail servers Gadi Evron (Feb 03)
- Re: Time to check the rate limits on your mail servers Michael . Dillon (Feb 03)
- Re: Time to check the rate limits on your mail servers Scott Weeks (Feb 03)
- Re: Time to check the rate limits on your mail servers Raymond Dijkxhoorn (Feb 03)
- Re: Time to check the rate limits on your mail servers Jørgen Hovland (Feb 03)