A quote from
Documentation Tags Reference » formSuppose a form has two fields named name and password. Upon successful validation of both fields, two variables named after the two fields will get set - frm_name and frm_password. Each will contain the value submitted through them.
Does this clear the confusion?
As to the second problem, the documentation indeeds needs some love. I'm contributing new articles and refresh old articles with new params, examples and tips in
Midware » Tags, but unfortunately, tag 'send_mail' was not touched yet.
Tag
send_mail does support following parameters:
from, reply_to, sender. These can be looked up in the Couch source code, but I have checked and you can use them, the headers 'Reply-To' and 'Sender' will be set.