Hi, I'm trying to find a nice solution for the following problem:
we offer backup MX facilities for many customer domains. For this, we have a number of mailservers (currently 5). An F5 loadbalancer distributes SMTP connections between these mailservers. Of course, sometimes customers want to send an ETRN command to force delivery. Now, this command is received on one of these loadbalanced servers and this server then will empty his queue (if possible). However, I would like this command to be executed on all servers. Unfortunately, I don't really know how I could do this. Anyone here who can give me a clue on how to do this? Is it possible to execute a program when an ETRN command is received? TIA and best regards, Teun
