Glossary
Explore demand gen terms. Filter by A–Z, topic, or search.
Double opt-in
Double opt-in is an email subscription process that requires users to confirm their consent twice: first by signing up, and then by clicking a...
Drip campaign
A drip campaign is a sequence of automated emails designed to nurture leads over time with relevant, timely content.
Email deliverability
Email deliverability refers to the ability of an email to reach recipients’ inboxes rather than being filtered into spam or blocked by email service...
Email marketing
Email marketing is the practice of using email to communicate with prospects and customers in a structured, purposeful way.
Follow-up
Follow-up refers to the communication that occurs after an initial interaction, whether that’s a form submission, meeting, or campaign touchpoint.
Hard bounce
A hard bounce occurs when an email fails to deliver permanently due to an invalid address, domain error, or blocked server.
Open rate
Open rate measures the percentage of recipients who open an email. It’s an indicator of subject-line effectiveness and audience interest.
Sender reputation
Sender reputation is a score that email service providers use to evaluate how trustworthy a sender’s domain and IP address are.
Soft bounce
A soft bounce is a temporary email delivery issue, often caused by factors such as a full inbox, a busy server, or a message that’s too large to...
Unsubscribe rate
An unsubscribe rate measures the percentage of email recipients who opt out of communications after receiving a message.