Hi, our outgoing mails sometimes end up undeliverable in postfix queue and bounce back after 5 days, when remote sites change MX entries and postfix has the old informations.
It seems that postfix is not doing another round of lookups when destination MX was already discoverd for remote domain which makes also sense. Are there workarounds available to re-initiate another MX-lookup for a recipient in mailqueue when it is undeliverable? any other help is also great. thank you. Stefan
