Campaigner n. : One who has served in an army in several campaigns; an old soldier; a veteran.

Example:
Is Hillary Clinton the most tenacious most powerful Campaigner to ever lose a primary?

Taxonomy
email newsletters, email marketing, campaigner, email marketing software, marketing services, e mail marketing, email software, email campaign, campaign software, email broadcast.

Defination from the web:
Campaigner email marketing software including over 470 email marketing templates. 30 Day Trial - no credit card required.