On Wed, Jul 17, 2019 at 03:38:45AM -0500, Dave Sherohman wrote: > On Tue, Jul 16, 2019 at 10:39:57PM +0100, mick crane wrote: > > well when I became aware of all this stuff, I thought this is great, > > everybody can connect and do what they like, if of course following > > protocols. > > But you can't do that can you ? you have to connect through a service > > provider. > > Certain ISPs (primarily those focusing on home customers, and especially > those providing dynamic IP addresses) will block outbound connections to > port 25 (smtp) by their clients. If your connection comes from such a > provider, then, yes, you do have to pass your mail through their mail > server, because their firewalls will prevent you from directly > connecting to any other mail servers.
I don't mail from my home machines. Instead I've got a virtual host "out there" (in my case it's a slice of a "real host" I share with a couple of friends). But I do know of people who do it from home. Cheers -- t
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