On Wednesday 11 April 2007 19:26:39 Markus Wild wrote:
You'd be amazed how many companies operate their own mail servers, even behind dynamic addresses (in which case they usually use some mailbox polling mechanism to feed their server from mail from the outside), but send outgoing mail directly with SMTP.
Which after all is still quite possible if they use the ISP's MX as smart host which they should do anyhow considering how many people outright block mails from dynamic IPs.
Seems to me that the benefit of cutting down on Spam would be worth the trouble of using port 587...