Glossary of Essential Terms for Mailzzy

A

A/B Testing

A method to compare two versions of an email to see which performs better.

With Mailzzy, test subject lines, content, or send times to find what clicks best.

API (Application Programming Interface)

A way for Mailzzy to connect with other applications, enabling data exchange and task automation.

Abandoned cart

When a customer adds a product to their online shopping basket, but does not proceed to checkout and complete the purchase. This could be because they aren’t ready to buy, or they might be using the cart as a ‘wish list’. You can set up automatic, personalized email alerts to remind people that they have items in their cart, as a little reminder for them to finish checking out. This is called an ‘abandoned cart email’.

Authentication

Permits ISPs (Internet Service Providers) to properly identify the sender of an email. This helps to ensure high delivery rates. The purpose of authentication is to reduce spam, which accounts for nearly 54% of all email traffic (Statista, 2020).

B

Bulk email

An email which is sent to a large group of subscribers at the same time. Marketing campaigns will often use bulk emails to promote a business or a product. Unlike spam, bulk emails are only sent to people who have subscribed to receive marketing emails from a company.

Blacklists

A list of IP addresses that have been blocked by an email provider or spam filter, due to phishing and/or spam.

Bounce rate

The percentage of page visits, where only one page was viewed. These people viewed a part of your site or landing page, but they didn’t engage further. To make people stick around, you could try A/B testing different methods like a special offer, a call to action (CTA), or optimized ad copy and design.

C

Campaign

An email or series of emails sent to a list of recipients for marketing or communication purposes.

Click-through Rate (CTR)

The percentage of recipients who clicked on one or more links to your Mailzzy account.in your email.

Click-to-Open Rate (CTOR)

The percentage of email recipients who clicked a link after opening your email.

Formula: (Unique Clicks ÷ Unique Opens) × 100

Contact List / Recipient List

A collection of email addresses (often with names or tags) used to send campaigns.

Call-to-action (CTA)

Anything which prompts a response from your audience. The CTA will tell them what to do after receiving your marketing message. It explains the next step. For example, it might say ‘Learn more’, ‘Contact us’, ‘Shop now’, or ‘Sign me up’. You can experiment with different CTAs using A/B testing, so that you can optimize them and get the best response from your subscribers.

Conversion rate

The percentage of actions taken after the total number of clicks on a digital asset. This might be to download a B2B (business-to-business) white paper, or to sign up to receive special offers. To calculate the conversion rate, simply divide the number of clicks by the number of actions taken. The higher the conversion, the more successful your marketing campaign.

Custom email template

An email template that matches a company’s brand identity, using their colors, fonts, and logos. The company can then use the custom email template for different marketing campaigns, keeping their brand identity consistent.

D

Drag & Drop Editor

Mailzzy’s visual tool to design emails easily by dragging in images, text, buttons, and more.

Domain

The web address (e.g., yourcompany.com) used for sending branded emails. Custom domains help improve deliverability and trust.

edicated IP

A Dedicated IP is a unique Internet Protocol (IP) address assigned exclusively to your email sending domain. Unlike shared IPs, which are used by multiple senders, a dedicated IP is used only by you —giving you full control over your sender reputation and improving your email deliverability. It’s especially valuable for high-volume senders who want to build and maintain a trusted reputation with inbox providers.

DNS

Stands for Domain Name System. A DNS translates a human-friendly IP address (e.g. internetwebsite.com) into a computer-friendly IP address, which a web browser uses to find and display a website. You can think of it almost like a phone book: it remembers the ‘phone number’ of a website, so that people just have to remember the name.

E

Email campaign

One or a series of emails that are sent to achieve a specific marketing goal. An email campaign will include a call to action (CTA) to encourage people to convert.

Email deliverability

A metric that measures how many emails reached the subscribers’ inboxes. Deliverability is influenced by many factors, so the best thing is to use a well-known email platform to take care of this.

Email marketing

A way to promote products or services through email. Email marketing is a top digital media channel, and it is important for customers’ acquisition and retention. MailerLite offers its email marketing platform with a free plan and can help you design, build, and optimize your email marketing to get the best ROI.

Email newsletter

Also known as campaigns, these are regular, scheduled emails that are sent out to subscribers. An email newsletter may include tips, news, industry insights, articles, stories, or educational content. Email newsletters are important for keeping subscribers engaged, and they build a relationship between the email marketer and their target audience.

Email Throttling

Controls how many emails are sent per minute/hour to stay ISP-compliant and reduce spam risk.

Email Scheduling

Schedule emails to your Mailzzy account. to be sent at a future time and date — perfect for time zones and planning ahead.

Export Reports

Download campaign data and performance reports for deeper analysis.

F

Follow-up

Follow-up emails are sent to recipients who didn’t open your initial email campaign. These emails give you a second chance to grab their attention—often with a new subject line, adjusted send time, or slightly modified content—to improve engagement and maximize your campaign reach.

M

Mass Mailing

Send thousands (or hundreds of thousands) of emails in a single click.

Mailzzy’s system optimizes delivery for large-scale campaigns.

Metrics

Data points that show how your emails perform — like open rates, clicks, bounces, and unsubscribed.

O

Open Rate

The percentage of recipients who opened your email.

A key metric for gauging subject line performance and sender reputation.

R

Retargetingg

Follow-up emails sent to people who opened or clicked a previous campaign, but didn’t convert.

Reports

Reports

Visual and downloadable analytics are available in your Mailzzy dashboard.

S

Segmentation

Divide your contact list into smaller, focused groups based on tags or actions for better targeting.

Spam Score

A score that predicts whether your email may be marked as spam.

Mailzzy checks this before sending.

Subject Line Helper (AI)

Mailzzy’s smart tool helps you write catchy, conversion-friendly subject lines.

T

Tags

The labels you assign to contacts to group, sort, and target them in campaigns more effectively.