Thank you very much everyone for the responses. So I think that for this case I have no solution, I will continue investigating thanks
El mar., 4 de ago. de 2020 a la(s) 15:03, Viktor Dukhovni ( postfix-us...@dukhovni.org) escribió: > On Tue, Aug 04, 2020 at 02:37:22PM -0300, SysAdmin EM wrote: > > > > No, the message never went back into the queue, since it was delivered > > > on the first attempt. The second MX host tried did not enforce > > > greylisting. > > > > Any recommendation to avoid retrying the second mx? in some cases when > > retrying the second mx we also represent the grey list error. > > Trying a second MX is the right thing to do. > > - Pattern matching the greylisting response is too fragile. > > - The various MX hosts may not share their greylisting caches, > and you may encounter another greylising delay if you defer > and retry. > > - Probably some other reasons, that I'm too lazy to recall on > the spur of the moment. > > Just let Postfix do its job. > > -- > Viktor. >
