On 2012-03-14, Mick <michaelkintz...@gmail.com> wrote: > On Monday 12 Mar 2012 18:34:37 Grant Edwards wrote: >> On 2012-03-12, Stroller <strol...@stellar.eclipse.co.uk> wrote: >> >>> No, I simply meant that if you use Postfix you don't have to use >>> anyone else's SMTP server, >> >> If you've got a static IP address, a domain, an MX record, and >> whatever other requirements a lot of sites are now placing upon >> senders of mail. >> >> I used to use my own SMTP server, 10 years ago it worked fine. More >> recently, too many destinations wouldn't accept mail from me -- so I >> had to start using mail relays. > > Perhaps your mail address was blacklisted? Many ISPs IP address > blocks are blacklisted these days.
I know that was sometimes the case from the rejection message sent by the destination SMTP server. Even though I had a static IP address and an valid MX entry for the sending machine's hostname, some sites wouldn't accept mail because my static IP addres was in a block used for DSL customers (of which I was one). > Also some ISPs are blocking ports (like 25 and 2525) to minimise spam > sent out of compromised boxen. They would typically allow you to > relay through their mailservers though. I've never run into that, but I know people who have. In either case, I wouldn't advise anybody to try using their own SMTP server to deliver mail directly to destinations unless they have their own domain, their own IP block, and the time+skills require to fight with the problems. Anybody with the requisite resources and skills probably wouldn't be asking questions here about how to use Gmail's SMTP server. -- Grant Edwards grant.b.edwards Yow! I Know A Joke!! at gmail.com