El sáb, 28-09-2019 a las 11:38 -0600, @lbutlr escribió: > On Sep 27, 2019, at 9:33 AM, Hugo Florentino <h...@grupokyd.cu> > [...] > > There is no changing ports constantly, or at all for that matter. > > There are experts here with decades of experience telling you not to > use port 25 for submission. Listen to them. > >
OK, fair enough. Let's see if the ISP is willing to allow access to submission port . I still think it would be good if postfix provided a header_checks which one could place in a specific order of evaluation within restriction classes. Best regards, Hugo