On Monday 08 Sep 2003 1:10 am, Greg Meyer wrote: > On Sunday 07 September 2003 07:26 pm, Richard Urwin wrote: > > > Postfix will make a direct smtp connection with the recipient's > > > mail server and you can use it to send without using it to > > > receive, in fact that is what I am doing right now. This message > > > was delivered to the list via postfix running on my machine, and > > > you don't need a domain name for that. The only problem with > > > this is that some isp's block smtp port 25 and require you to use > > > their mail servers instead in an effort to block spammers. > > > > Blocking port 25 only affects incoming mail. If you use POP3 to > > receive then it wont affect you. > > My understanding is that my isp can block (it doesn't, some do) port > 25 at it's router/firewall so that my machine cannot make a smtp > connection to any other machine outside of its network. This forces > me to use their smtp server for all outgoing mail. > > Also, Roadrunner blocks port 25 connections from dynamic ip address > ranges, so I cannot send a message to someone using roadrunner using > postfix. I have to use my isp's smtp server for that too.
I've not come across that before, but it doesn't stop you doing what you want. There has been some talk on the list about your address going into a blackhole list if you mail directly, anyway. -- Richard Urwin
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