nanog mailing list archives

Re: Verisign suggestion


From: Valdis.Kletnieks () vt edu
Date: Thu, 18 Sep 2003 01:16:14 -0400

On Thu, 18 Sep 2003 00:36:05 EDT, David B Harris <david () eelf ddts net>  said:

If they don't accept anything on port 25, either by sending all packets
to /dev/null or by responding with SYN+RST ("Connection refused"), MTAs
everywhere will consider this a "temporary error."

They could save us a bunch of RTTs, remove concerns they were harvesting
the MAIL FROM and RCPT TO, and lower their load if they just implemented
RFC1846 and replied '521 64.94.110.11 Fleep Off'


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