[fetchmail-users] use variables in fethcmailrc ?

[M. E. A. <me...@gm...>]

Hi, 

I want to substitute some of my setting in my fetchmailrc file by variables to make the file more flexible.

Is it possible to use variables in a fetchmail config file ?
For example:
 $CERTFOLDER=$HOME/.certs
 poll pop.gmail.com with proto POP3 user 'us...@gm...' there with
 password 'secret' is 'newbie' here options keep 
 ssl sslfingerprint '59:51:61:89:CD:DD:B2:35:94:BB:44:97:A0:39:D5:B4'
 sslcertck sslcertpath $CERTFOLDER

What would is the standard way of doing this in fetchmail?

Thanks.
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