Hi Anvar, > Yes and also it is recommended to setup different selector for each server > and different key per server.
I'm not sure I fully understand what you are saying. So I should have created a separate 'default.private' for each server ? How would this work on my DNS server - would they have to have unique identifiers so that the TXT record on the mail server could be added for both servers as well ? I don't want to create a separate DKIM for each sub domain - there are potentially 100's for all our clients. I want a DKIM for the top level 'school.kiwi' domain which is then used for each of the sub domains. Is this possible ? Kent. > On 13/12/2017, at 8:23 PM, Anvar Kuchkartaev <an...@anvartay.com> wrote: > > Yes and also it is recommended to setup different selector for each server > and different key per server. > > You can test DKIM signature using this website: > http://dkimvalidator.com/ > > Anvar Kuchkartaev > an...@anvartay.com