% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Other crossword clues for answer "SPAMBOT"

SPAMBOT
Junk source
CAPTCHA might catch one
Many a Twitter poster
Distributor of a lot of unread content
Junk e-mail sender
Automated junk e-mail sender
Automated sender of mass emails
One may be foiled by a captcha
Garbage delivery vehicle?
Web nuisance
Modern-day harvester
Sender of many unwanted messages
Thoughtless sender of emails?
Sender of unsolicited emails
Everything it produces is junk
Net nuisance
Frequent Viagra offerer?
Coded pest
Automated email address harvester