Hi
Jeroen Massar schrieb:
Roger Schmid wrote: [..]
Otherwise spammers would open 100th's of free accounts and use them to send spam from non-bluewin IPs :-/
I see the problem, but perhaps something like a captcha would also be sufficient to prevent this.
SMTP-Captcha's? :)
I guess he means captchas at the page where you register a free bluewin-account ;-)
But if you give the spammers a real reason to break captchas they will find a way to do it. And then you can run for the next smart thing to do. Giving people an SMTP-Account at some server they pay for anyway is far better.
SPF will, of course, cause you trouble. For that you would need an SMTP-Account at a server *listet in the SPF-record for the domain bluewin.ch*. Since nobody but bluewin themselves can provide that... yeah... you can guess what happens...
Regards Peter