My ISP recently started offering imap email service in addition to the pop3/smtp servers they've always had, so I decided to try it.
I was surprised to see that they recommend using a different smtp server name when setting up my mail client, and they even offer the option of using port 587 instead of 465 if I prefer it. Why would I use a different smtp server if I'm now using imap? I use smtp to send mail, and imap to read it, right? Why not use the same smtp server in either case? (The different server names actually resolve to the same IP address, so the distinction seems to be more theoretical than real, but the theory is what puzzles me.) Thanks.