[boost] How to respond to mailing list

Subject: [boost] How to respond to mailing list
From: Kirk Liberty (kirk.liberty_at_[hidden])
Date: 2014-09-04 01:54:57

Hello,

I'm sorry to have to ask this, but I've googled all around and can't figure
it out. My email is set up to receive periodic digests of the mailing list.
If I want to respond to an email thread, how would I do that?

Thanks,
Kirk