Glossary Confused with certain words and terms? We've got you covered. A Above-the-fold Account Affiliate Program Alignment API API Key Attachment Automation Autoresponder B Behavioral targeting Below-the-fold Blank Email Blocking Blog Bounce rate Bounced Broadcast Bulk email C Campaign definition CAN-SPAM Act Captcha definition Character Encoding Click Tracking Click-through Rate Client Confirmation Message Confirmed Opt-In Cookie CSV Format Custom Field Custom reports D Data controller Data processor Dedicated Server Deliverability Rate Delivered DKIM DMARC DNS Domain Name Dynamic Content E Email Advertising Email Campaign Email Client Email Headers Email Promotion Emailing ESP F File Attachment Footer Frequency From Field G General Data Protection Regulation (GDPR) Generating HTML Greylist H Hard Bounce HTML HTML Message I Image Blocking IMAP Import Inactive Subscribers Instant Message Interval IP Address IP Blocking ISP L Landing Page Lead Conversion Leads Generation Link List Management List Segmentation M Mailing List Merge Word Message Format Multi Unsubscribe (Opt-out) N Newsletter Newsletter Template Non-confirmed Opt-in Notification O Open Rate Opt-in Email Opt-out (Unsubscribe) P Performance Statistics Permission-based Marketing Personal data processing Personalization Phishing definition Plain Text POP Pop-up Postal Address Pre-load Predefined Text R Ref Tracking Number Removals Reply-to Field Report ROI RSS S Sale SEM Sensitive personal data Soft Bounce Spam Spam Complaint Spam Trap SPF Split Test Spoofing Subject Line Subscribers Survey T Thank-you Page U URL W Web Form Whitelist Wizard Z ZIP File