On Wed, 1 Jun 2005, Gadi Evron wrote:
There is no real reason why you should be able to email out with bush@whitehouse.gov using Verizon's own servers.
perhaps not that, but surely user@vanity.domain and if they do/have auth info they can even see who it was when there are problems.
If you are an advanced enough user to have your own vanity domain then you are advanced enough to have your own SMTP server. If port 25 is blocked, you can probably sort this out with your ISP (if said ISP is responsive to your needs) and/or move an ISP.
1) monopoly isps 2) standard config 3) lack of ability to make 1/2/3 changes here/there/everywhere (config drift) for customers not paying more than the 'standard'. There are other reasons of course. Also, customers with their own SMTP/IMAP services COULD just do tcp/587 'submission'... but we covered that ground already I think?