North American Network Operators Group|
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Re: Why do so few mail providers support Port 587?
On Thu, Feb 24, 2005 at 11:36:40PM -0500, [email protected] wrote: > Well, OK. If you know for a *fact* that your users *never* roam, and you > have sufficiently good control of your IP addresses that you can always safely > decide if a given connection is "inside" or "outside" and allow them to relay > based on that, then no, you don't need to support 587. > > The rest of us run mail services in the real world, where lots of users buy > laptops, and then actually <gasp, shock> *use* the portability and thus often > end up behind some other ISP's port-25 block. I force anyone, who wants to relay to use SMTP-AUTH on port 25. Only mails for local delivery are accepted without AUTH. Whats point in opening another port? I use this mailserver from a lot of different networks and it works fine. If a provider blocks port 25 I call them, ask them to cahnge it, if they don't I cancel my contract, because they don't do there Job (forwarding IP). Nils