On Jul 23, 2015, at 10:26 AM, Sascha Hüdepohl <sas...@ravenworks.de> wrote: > So my question is: Are there any reasonable reasons to have an invalid > helo hostname or should i relax my settings?
That all depends on the value of “reasonable” you have. To my mind, no, there is not. There are MANY mail servers that will reject their mail. That said, I see some surprisingly large companies that still don’t understand email at all, so… -- Realizing the importance of the case, my men are rounding up twice the usual number of suspects.
