Marketing Ops Glossary
Lifecycle, segmentation, sequences, and email-deliverability terminology
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Behavioral Segmentation
Grouping contacts by what they actually do — purchase history, page visits, email engagement, product usage, search behavior.
SegmentationBounce Detection
Automated identification of email bounces (delivery failures) to trigger suppression, sequence exit, and list hygiene actions.
SequencesC
Click-Through Rate
Click-through rate (CTR) is the percentage of people who click a link in your email, ad, or message out of everyone who saw it.
DeliverabilityComplaint Rate
Percentage of recipients who mark your email as spam — values above 0.1% damage sender reputation rapidly.
DeliverabilityCustomer Evangelist
A customer so satisfied with your product they actively recommend it to others without prompting or compensation.
LifecycleCustomer Lifecycle
The full arc of a customer's relationship with your business, from first touch through advocacy, mapped to specific stages your team can act on.
LifecycleD
DKIM
DKIM is an email authentication standard that cryptographically signs outbound mail so receivers can verify it really came from your domain.
DeliverabilityDMARC
DMARC is an email authentication policy that tells inbox providers what to do when a message fails SPF or DKIM checks against your domain.
DeliverabilityDemographic Segmentation
Grouping contacts by individual characteristics — age, gender, income, education, occupation, marital status, location.
SegmentationDisengaged Subscriber
An email subscriber who has stopped opening, clicking, or replying — typically inactive for 90+ days but not yet unsubscribed.
LifecycleDomain Warming
Gradually ramping up email volume from a new sending domain over weeks to build sender reputation with inbox providers.
DeliverabilityDormant Lead
A lead in your database that hasn't engaged with marketing or sales touches for an extended period — typically 60-180 days.
LifecycleDynamic List
An auto-updating marketing list whose membership is defined by filter criteria — contacts join and leave automatically as they meet or stop meeting the rules.
SegmentationE
Email Allowlist
List of trusted senders explicitly permitted to deliver mail to an inbox or organization, bypassing standard spam filtering.
DeliverabilityEmail Blacklist
A publicly maintained list of IPs or domains known to send spam — listing causes widespread email delivery failures.
DeliverabilityEmail Denylist
Modern term for an email blacklist — list of IPs or domains blocked from sending mail to a given infrastructure.
DeliverabilityEmail Sequence
A scheduled series of automated emails sent to a contact based on triggers, timing, or behavior to move them toward a defined outcome.
SequencesEngaged Subscriber
An email subscriber who has opened, clicked, or replied to your messages within a recent active window — typically the last 30-90 days.
LifecycleExit Criteria
Rules that automatically remove a contact from a sequence — typically reply detection, meeting booked, deal-stage change, or unsubscribe.
SequencesF
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IP Warming
Gradually increasing email volume from a new dedicated IP address to establish positive sender reputation with inbox providers.
DeliverabilityIdeal Customer Profile
A documented description of the company type that gets the most value from your offer and is most profitable to serve.
SegmentationInbox Placement Rate
Percentage of sent emails that land in the recipient's primary inbox versus spam, promotions, or other folders.
DeliverabilityL
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MQL
MQL (Marketing Qualified Lead) is a prospect whose engagement signals indicate they're ready for sales follow-up but haven't yet been vetted by a rep.
LifecycleMarketing List
A defined group of contacts in your marketing platform used as a sendable audience for campaigns, sequences, or automations.
SegmentationMarketing Tag
A label applied to contacts or content to enable flexible categorization and segmentation without rigid field structures.
SegmentationMulti-Channel Cadence
A coordinated outreach sequence that combines multiple channels — email, phone, LinkedIn, SMS — rather than relying on email alone.
SequencesO
Open Rate
Open rate is the percentage of delivered emails that recipients opened, used to gauge subject-line performance and list engagement.
DeliverabilityOut-of-Office Detection
Identifying out-of-office auto-replies and distinguishing them from genuine responses so sequences pause rather than exit.
SequencesOutreach Cadence
A structured sequence of outbound touches across channels and time intervals designed to engage prospects and book qualified meetings.
SequencesP
PQL
A Product Qualified Lead (PQL) is a user whose in-product behavior signals real buying intent, making them ready for a sales conversation.
LifecyclePsychographic Segmentation
Grouping contacts by values, beliefs, attitudes, interests, lifestyle, and motivations rather than demographics or behavior.
SegmentationR
Reactivation Campaign
A targeted marketing sequence designed to re-engage dormant customers or leads who've gone quiet but haven't formally churned.
LifecycleReply Detection
Automated identification of email replies to outbound sequences — triggers exit criteria and notifies the sender of new responses.
SequencesReschedule Logic
Rules that automatically delay or shift sequence steps based on conditions like OOO replies, recipient time zones, or business-hour preferences.
SequencesS
SAL
A Sales Accepted Lead (SAL) is an MQL that sales has reviewed and formally agreed to work, confirming fit and intent before active outreach begins.
LifecycleSPF Record
An SPF record is a DNS entry that lists which servers are authorized to send email from your domain, protecting deliverability and brand.
DeliverabilitySQL
A Sales Qualified Lead (SQL) is a prospect vetted by marketing and accepted by sales as ready for a direct sales conversation.
LifecycleSegment Filter
A rule or set of rules that defines who matches a marketing segment — based on contact properties, behaviors, or relationships.
SegmentationSender Reputation
Sender reputation is the trust score mailbox providers assign to your sending domain and IP, deciding whether your email lands in inbox or spam.
DeliverabilitySender Score
Validity's 0-100 reputation score for email-sending IPs, based on volume, complaints, spam-trap hits, and blocklist appearances.
DeliverabilitySequence Enrollment
The action of adding a contact to a sequence so they begin receiving the sequence's steps in order.
SequencesSequence Performance
Metrics measuring how well an outreach sequence is converting contacts — reply rate, meeting-booked rate, opportunity rate per step and overall.
SequencesSequence Step
An individual action within a multi-step outreach or nurture sequence — typically an email, task, delay, or branching decision.
SequencesSoft Bounce
A temporary email delivery failure — recipient inbox is full, mail server is down, or message is too large — that may succeed on retry.
DeliverabilitySpam Folder
The mailbox folder where email determined to be unwanted is automatically filed by the inbox provider, bypassing the user's main inbox.
DeliverabilitySpam Trap
An email address used by ISPs and blocklist providers to identify senders with poor list hygiene and flag them as spammers.
DeliverabilityStatic List
A fixed marketing list whose membership is set at creation and doesn't change unless contacts are manually added or removed.
SegmentationSuppression List
A list of contacts excluded from marketing sends — covering unsubscribes, hard bounces, complaints, and any other do-not-contact reasons.
SegmentationW
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