Hi. I am about to write some custom courier mail filter app. (Thanks to Gordon for a extendable python framework!)
What I did not understand is, may a filter change the message's content?
Some older docs say that this may not be done, the current doc does not
explicitly state this. I tried to do so and it works. The docs say, the
filters are called one at a time, so there should be no problem with this.
So, is it safe to alter the message from a global courier filter?
The docs say:
| The mail filter is free to judge the message's worthiness by reading its
| contents and/or control file(s) [...]
| The final verdict is rendered by writing back a result code on the same
| socket.
Perhaps it could be written more clearly if modifying content is safe or not.
cu, Bernd
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