Email Marketing
Definitions of the B2B email terms outbound teams use. To see how SalesHive runs managed cold email, visit our Email Outreach page.
Cold Email Lead Generation Agency
A cold email lead generation agency is an outside team that builds prospect lists, protects separate sending domains, writes and sends outbound email, answers replies and books B2B sales meetings for your sellers.
Learn moreDo Not Contact List (DNC)
A Do Not Contact (DNC) list records outreach restrictions and their scope. Learn how to distinguish email opt-outs, call restrictions and invalid data, then enforce them across campaigns.
Learn moreQualified Lead
A qualified lead is a B2B contact or account that fits your ideal customer profile and has shown clear buying intent, making them ready for focused sales engagement. In email-driven sales development, qualified leads are identified using criteria like firmographics, role, pain points, and email behaviors (replies, meeting requests, and other engagement) that indicate real interest and a likelihood to progress into pipeline.
Learn moreOpener
An opener is the first thing said or written in a conversation or message, meant to grab attention and set the tone. In B2B sales development, the opener is the first one to three sentences of a sales email or cold call that decide whether the prospect keeps reading or listening.
Learn moreAuto-Responder
An auto-responder is an email system that sends preconfigured replies or follow-up messages automatically based on triggers such as a form fill, a download, or a time delay. In B2B sales development, auto-responders handle timely, consistent outreach at scale so SDRs can focus on high-intent conversations and complex deals instead of sending every touch by hand.
Learn moreResponder
A responder is anyone who replies to a message, campaign, or survey. In B2B sales development, a responder is a prospect who answers an outbound email, call, or LinkedIn message, whether the reply is positive, negative, a referral, or an objection. Out-of-office and other automatic replies are logged separately, because they show a message arrived, not that a person engaged. Tracking responders and responder rate helps SDR teams measure outreach effectiveness, qualify interest, route leads, and trigger next steps across multi-touch sequences.
Learn moreQualification
Qualification is the process of judging whether someone or something meets a defined set of criteria. In B2B sales development, qualification means determining whether a prospect is a good fit and realistically likely to buy, based on need, budget, authority, and timing.
Learn moreFollow Up Email
A follow up email is a message sent after an earlier email, meeting, or interaction to continue the conversation or prompt a response. In B2B sales development, follow up emails re-engage prospects, clarify next steps, and move an opportunity forward across a multi-touch cadence.
Learn moreConversion Rate
Conversion rate is the percentage of people who take a specific desired action out of the total number who had the opportunity to. In B2B sales development, it measures how many prospects reply to a cold email, accept a meeting, or become a qualified opportunity out of the total contacted, making it a core metric for how effectively outbound and SDR motions turn raw prospects into pipeline.
Learn moreCASL
CASL (Canada’s Anti-Spam Legislation) is a federal law that regulates commercial electronic messages (CEMs) sent to or from Canadian recipients, including B2B sales emails. It requires consent, clear sender identification, and an easy unsubscribe in every message, and imposes significant penalties for non-compliance, so outbound sales teams targeting Canadian accounts must design CASL-compliant prospecting workflows.
Learn moreEmail Blacklist
An email blacklist is a database of IP addresses or domains that mailbox providers and security gateways flag as sources of spam or abusive email, causing messages to be blocked or sent to spam folders. In B2B sales development, landing on a blacklist can quietly shut down SDR outreach by preventing cold emails, sequences, and automated follow-ups from ever reaching decision-makers.
Learn moreEmail Template
An email template is a reusable, pre-written email structure that can be sent repeatedly and personalized for each recipient. In B2B sales development, email templates speed up prospecting, follow-ups, and meeting confirmations while leaving room for targeted personalization.
Learn moreEmail Cadence
Email cadence is the planned sequence, timing, and content of outbound emails sent to a prospect over days or weeks. In B2B sales development, a strong cadence defines how many emails go out, when they send, how they relate to calls and social touches, and how prospects exit once they reply or disqualify, so teams build predictable, repeatable pipeline.
Learn moreCold Email
Cold email is an unsolicited, one-to-one email sent to a business decision-maker with whom you have no prior relationship, with the goal of starting a sales conversation. In B2B sales development, it’s a scalable outbound channel used by SDR teams to identify, qualify, and book meetings with ideal prospects in target accounts.
Learn moreA/B Testing
A/B testing is a method of comparing two versions of something by showing each to a separate group to see which performs better. In B2B sales development, A/B testing runs controlled experiments on cold email subject lines, body copy, CTAs, send times, or call scripts to find what wins.
Learn moreSender IP Address
A sender IP address is the unique numerical address of the mail server that physically sends your B2B sales emails. In sales development and cold outreach, mailbox providers (like Google and Microsoft) use this IP, along with your domain and content, to evaluate sender reputation, decide whether to accept your messages, and determine if they land in the primary inbox, promotions, or spam.
Learn moreCAN-SPAM
CAN-SPAM (Controlling the Assault of Non-Solicited Pornography and Marketing Act of 2003) is the US federal law that sets rules for commercial email, including B2B outreach. It requires accurate sender and subject information, a clear opt-out mechanism, and a physical postal address, making it the foundational legal framework for compliant cold email and sales development campaigns targeting US recipients.
Learn moreVariable Testing
Variable testing in B2B email marketing is the systematic experimentation of specific elements in outbound sales emails, such as subject lines, opening sentences, CTAs, and send times, to identify which variants drive better outcomes. It uses structured A/B or multivariate tests on targeted prospect segments so SDR teams can continually improve open rates, reply rates, and meetings booked with data-backed decisions.
Learn moreSubject Line
A subject line is the short line of text that appears in an email inbox and tells the recipient what the message is about. In B2B sales development, a sharp subject line is what earns the open on a cold or follow-up email before the body is ever read.
Learn moreSpoofing
Spoofing is the practice of forging or manipulating identity details, such as an email From address, display name, caller ID, or domain, so a message or call appears to come from a trusted person or brand. In B2B sales development, it is commonly seen in phishing and business email compromise (BEC) attacks targeting sales, finance, and executive teams, and can also describe risky outreach that misleadingly mimics another sender.
Learn moreSPF
Sender Policy Framework (SPF) is an email authentication protocol published as a DNS TXT record that specifies which mail servers are authorized to send email for your domain. In B2B sales development, properly configured SPF reduces spoofing, improves cold email deliverability, and helps sales teams keep sequences landing in prospects’ inboxes instead of spam folders by proving messages come from legitimate infrastructure.
Learn moreSpam Keyword
A spam keyword is a word or phrase (often promotional, urgent, or “too good to be true”) that increases the likelihood a B2B sales email gets filtered into spam or junk folders. While modern filters don’t rely on keywords alone, “spammy” language still contributes to negative content signals, especially when combined with poor domain reputation, weak authentication, or low engagement, reducing inbox placement and reply rates.
Learn moreSpam Filter
A spam filter is software that automatically identifies and blocks unwanted or suspicious emails before they reach the inbox. In B2B sales development, spam filters sit between your SDRs and prospects, scoring each cold email on technical setup, sender reputation, and content to decide whether it lands in the primary inbox, promotions, or the spam folder.
Learn moreSoft Bounce
A soft bounce is a temporary email delivery failure where a valid address rejects a message for a short-lived reason, such as a full mailbox or an offline server. In B2B sales development, soft bounces flag deliverability issues that can usually be retried, unlike permanent hard bounces.
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