On 4/13/2014 8:38 AM, Robert Schetterer wrote: > Am 13.04.2014 10:34, schrieb Stan Hoeppner: >> On 4/12/2014 3:03 PM, li...@rhsoft.net wrote: >> >>> but on the other what is that hard to have HELO/PTR/A matching? >> >> This has been asked and answered multiple times on this list. The short >> answer is that customers of some ISPs do not have control of rDNS. For >> a more thorough discussion of this topic please see the list archives. >> >> Cheers, >> >> Stan >> > > Hi Stan it was not about ptr matching A Record , it was about matching > helo to ptr/A, i.e. A/ptr = mail.example.com but helo = smtp.example.com > and it was about ,this was classified by some hosting provider ( using > v4bl.org RBL helo mismatch results ) , as a customer "ban warning" which > is simply nonsense, but for sure it is best to have all parameters > matching ( dont kown why this is/was/cannot be done in this case )
Clearly I was responding specifically to 'what is hard about making them match', which is why I snipped the rest. If one controls PTR it's easy to make all 3 match. When one does not control PTR it is 'hard', in fact impossible, to make them all match. Our friend from Vienna seemed focused on incompetency of admins, while I was pointing out that 'incompetency' of some ISPs is a larger problem, as in the latter case there is often no option to set the PTR, whether one reads the docs or not. Cheers, Stan
