Sending email while using another network

PowerBook road warriors often find themselves forced to switch to a local mail server when using someone else's network connection, because most mail servers will not accept mail from an outside machine. One solution to this problem is to use SMTP authentication, but not all servers support authentication. Ron McKinney offers an alternative solution. He writes: "When we travel to a client's site and hook up to their network with our PowerBooks, we have to change the outgoing mail server address or our mail server will reject us (we currently use Quickmail Pro running on an old iMac.). Short of buying a mail server that has SMTP authentication, there seemed to be no alternative. Then we set up the Stalker Internet Mail Server (free on the Stalker Web site) as a background app similar to the way sendmail works in OSX. We configured it to launch during startup as an appe in the extension folder, turned the POP functions off, and set the SMTP section to only accept mail from the 127.0.0.1 local host to avoid spammers. Now we can instruct Outlook Express to use 127.0.0.1 for outgoing mail across our own server from anywhere we have a net connection. Update: Here are several alternative suggestions: Kiran Wagle suggests POP3's XMIT command to send mail, if the POP server and client supports it. Eudora does this for example. Mikael Fredriksson writes: "You can email from a client's site with a QuickMail server. First read your mail and then you have a small 'window' to send your mail. I have used it and it works." Laurie Nyveen advises: "Whenever I'm on the road, I use http://www.umailme.com. It lets you access any POP e-mail account with a Web browser. Simple, and works great." Julian Wright notes: Twigger is yet another alternative. Unlike your previous postings, this one works for European users." Update: Paul Suh adds: "Sometimes this does not work because the local firewall has blocked outgoing access for most internal addresses to port 25, so that all mail must go through the designated mail server(s). In this case, running a local SMTP process will not enable you to send mail."