--On 28 March 2008 12:47:48 +0000 Julian Mehnle <[EMAIL PROTECTED]> wrote:
>> Until no email service provider accepts message submissions outside of >> their own domains, all email providers offer message submission on port >> 587, all message submissions are autheticated, and mail forwarders >> accept responsibility for the email that they forward, it's not safe to >> bounce email. > > This, however, is simply untrue. Of course what you said is desirable, > but SPF can help with safely bouncing e-mail _today_. Only for the minority of domains that publish SPF records. My intention was to convey that SPF will be the solution once adopted. > SPF may sometimes > give an unexpected "Fail" result due to alias-style forwarding or other > problematic cases, but when it gives a "Pass" result, it is always safe, > i.e., the return path can be assumed to be authentic and bounces may be > sent. -- Ian Eiloart IT Services, University of Sussex x3148 _______________________________________________ Mailman-Developers mailing list [email protected] http://mail.python.org/mailman/listinfo/mailman-developers Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-developers%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-developers/archive%40jab.org Security Policy: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp
