LinuxQuestions.org - Using stdout for more than one task

Hoping the title is accurate. I'm not sure what the right term is.

I want to parse my mail log file and reuse the results but I'm having a hard time structuring the syntax. Something like:

Code:

grep hostname /var/log/mail.log | \

  grep NOQUEUE: | \

  sed -e 's/hostname postfix\/smtpd/[[0-9]*\]: //g'

at this point I want to redirect what I have in hand to a file but also ... fork? or split? whatever the term, to continue onward so that I can pipe the results further into wc -l or sort or programX... without having to re-loop through that huge log file.

Is this technique possible, what is it called or how might you do it?