Hi, There is some misunderstanding in your setup. If you host 3 domains then you will rather want to send mails FROM these domains into outer world through different gateways. But your transport maps work when postfix work with mail TO this domains.
If I am right you should remove transport map and add sender_dependent_relayhost_maps = hash:/usr/pkg/etc/postfix/bysender
to main.cf, create bysender like: @example1.com smtp:gw1.gateway.com @example2.com smtp:gw2.gateway.com @example3.com smtp:gw3.gateway.com run postmap /usr/pkg/etc/postfix/bysender and reload postfix On Wed, May 27, 2020 at 06:13:46PM +0200, Matteo Cazzador wrote:
example1.com smtp:gw1.gateway.com example2.com smtp:gw2.gateway.com example3.com smtp:gw3.gateway.com than i use make "postmap transport".
-- Sincerely yours, Dima Veselov Physics R&D Establishment of Saint-Petersburg University