10 Apr
2014
10 Apr
'14
10:27 a.m.
Lindsay Haisley fmouse@fmp.com wrote:
SPF inherently breaks mailing lists
No, it doesn't. SPF checks the envelope sender, and when the list host is, say, lists.example.com, the envelope sender is something like listname-bounces@lists.example.com, and that can pass SPF. Mailman, Listserv, etc, all write their envelope sender that way.
Joseph Brennan Columbia University Information Technology