Feature request: Filter SMS export

[vistad]

Great app! However I have a question: I'd like to export SMS messages only from one sender as records to a daily incremented logfile.csv, and only those containing a certain Search word in the message.
The best would be to have a config file where I can indicate the Sender and the Search word - or any interface.
The desirable output format is:
date,sender,status,message
Is it possible?
Thanks.

[tmo1]

This is similar to issue #171 ; I've actually begun to experiment with implementing message filtering, and I'll keep your use case in mind.