I've been reading through the docs and searching this forum, but can't seem to dig up the info. Can Astaro can be used as an smtp relay from the external interface, but using authentication to prevent having an open relay? The problem is when I travel, I have no reliable smtp server to send email out through. For example, my ISP's smtp server is limited to it's own IP ranges, so when I'm on the road I can't use that. So I need some reliable, consistent smtp server I can connect to from anywhere on the net.
My mail server sits behind the Astaro machine, and I'm using Astaro's smtp proxy functionality which works great. And obviously my internal machines can use the Astaro machine (or the internal mail server if I wanted) as their outbound smtp server. I suppose if Astaro isn't capable of being an authenticated relay on the external interface then I could set up port forwarding on some high port to forward through to my internal mail server port 25, and require amtp authentication on the mail server. That just doesn't seem like a clean way to do things, though.
Any suggestions? If Astaro can't handle that, what do you all do in those situations? (And don't tell me to switch to a web based mail solution.) [:)]
-joe
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