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Re: SMTP spoofing ?
John R Levine writes: > Are there any routers currently available that can do port 25 spoofing for > dialup users? That is, when the user attempts to connect to port 25 > anywhere, he in fact connects to port 25 on your own SMTP server instead. > > In case it's not obvious, it's for spam management. It seems simple enough to block all outgoing SMTP to anything but your own server, and to apply such a filter on your dialups. I don't know if the more complex solution you propose is worth it -- the users will quickly learn where they should aim their mail... Perry