nanog mailing list archives
Re: Why do so few mail providers support Port 587?
From: David Lesher <wb8foz () nrk com>
Date: Tue, 1 Mar 2005 15:55:22 -0500 (EST)
Speaking on Deep Background, the Press Secretary whispered:
Yes, right up until a) ISPs wise up and start blocking port 587, and then 465 for good measure. or b) malware authors wise up. B will happen sooner. Chris
Well, I'm no player in this league and ask... Why will ISP's ""wise up"" and block 587? If 587 is always auth'ed; then there will be no spam splashback provoking calls to block it. (Individual customers may get zombied; but that's easy to track and treat...) If a provider runs an open 587 port, and thus gets used as spam source; they will soon meet Mr. Linford and/or Mr. SPEWS. In either case, why will the clued ISP's want to block 587? -- A host is a host from coast to coast.................wb8foz () nrk com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
Current thread:
- Re: Why do so few mail providers support Port 587?, (continued)
- Re: Why do so few mail providers support Port 587? Nils Ketelsen (Mar 01)
- Re: Why do so few mail providers support Port 587? Frank Louwers (Mar 01)
- Re: Why do so few mail providers support Port 587? Nils Ketelsen (Mar 01)
- Re: Why do so few mail providers support Port 587? Valdis . Kletnieks (Mar 01)
- Re: Why do so few mail providers support Port 587? Valdis . Kletnieks (Mar 01)
- Re: Why do so few mail providers support Port 587? Michael G (Mar 01)
- Re: Why do so few mail providers support Port 587? Jason Frisvold (Mar 01)
- Re: Why do so few mail providers support Port 587? David Lesher (Mar 01)
- Re: Why do so few mail providers support Port 587? Chris Horry (Mar 01)
- Re: Why do so few mail providers support Port 587? Stephen Fulton (Mar 01)
- Re: Why do so few mail providers support Port 587? David Lesher (Mar 01)
- Re: Why do so few mail providers support Port 587? Jim Popovitch (Mar 01)
- Re: Why do so few mail providers support Port 587? J.D. Falk (Mar 01)
- Re: Why do so few mail providers support Port 587? JC Dill (Mar 01)