nanog mailing list archives
Re: incorrect spam setups cause spool messes on forwarders
From: Paul Vixie <vixie () vix com>
Date: 02 Dec 2003 15:13:15 +0000
telling spammers 4xx or 5xx doesn't matter, they don't listen.
yes, but interestingly, every "smtp transport" (remote ip address who connects to your tcp/25 service) who ignores 5XX (which you can tell because they come back and try the same thing again over and over) is either a spammer or the output side of a proxy (which might be hard to detect). so it turns out that ignoring 5XX is like sending up a flare, "blackhole me!". -- Paul Vixie
Current thread:
- Re: incorrect spam setups cause spool messes on forwarders, (continued)
- Re: incorrect spam setups cause spool messes on forwarders Randy Bush (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders Valdis . Kletnieks (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders Randy Bush (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders Paul Vixie (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Jared Mauch (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders Michael Lewinski (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders Daniel Roesen (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders John Brown (CV) (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Daniel Roesen (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Randy Bush (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Paul Vixie (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Daniel Roesen (Dec 01)
- Re: incorrect spam setups cause spool messes on forwarders Valdis . Kletnieks (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Suresh Ramasubramanian (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Richard Cox (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Suresh Ramasubramanian (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Valdis . Kletnieks (Dec 02)
- Re: incorrect spam setups cause spool messes on forwarders Suresh Ramasubramanian (Dec 02)