Hi Gustav,
thanks for pointing this out.
Such measure would indeed make the automatic handling of bounces impossible. Then again such feature is not required in all cases and an additional configuration option might eliminate some of the complexity of an initial mail set up.
Next time the issue comes up I'll play with the parameters to see if I can produce an "acceptable" sender address.
However, this seems to be only necessary in scenarios where
a) External Mail Providers have very rigid policies or
b) Company policies prevent changes in local mail server configurations
Thanks Gustaf - very accurate and helpful as always!
Cheers
Klaus