Error with different IPs in Postfix (master.cf)

Hello,

as discribed within the other (still urgend & open) question regarding multiple IPs and Postfix / Dovecot:

I have one main IP and 4 additional ones. Each IP has it's own SSL certificate.

But: Only one one of the additional IPs postfix (smtp) is listening. The other one do not "have" a smtp server - until i manually update the master.cf.

... but after some hourse that file has been recreated (?) and the smtp server is gone again.

any solution ?

Kind regards, Snoop