On Tue, 01 Mar 2005 09:18:19 EST, Nils Ketelsen said: > 2. Port 587 Mailservers only make sense, when other Providers block > port 25. My point is: If my ISP blocks any outgoing port, he is no longer > an ISP I will buy service from.
That's not when you need a port 587 server... > Therefore I do not need a 587-Mailserver, > as I do not use any ISP with Port 25-Blocking for connecting my sites or > users. Port 587 is for when you take your laptop along to visit your grandparents, and they have cablemodem from an ISP that blocks port 25. Now which do you do: 1) Whine at your grandparents about their choice of ISP? 2) Not send the mail you needed to send? 3) Make a long-distance (possibly international-rates) call to your ISP's dialup pool? 4) Send it back to your own ISP's 587 server and be happy? (Hint - there's probably a good-sized niche market in offering business-class mailhosting for people stuck behind port-25 blocks - they submit via 587/STARTTLS and retrieve via POP/IMAP over SSL).
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