Help Center > Glossary
This glossary is here to provide clear explanations of the most commonly used terms to help you better understand the processes in email marketing.
An anonymous user is someone who hasn't registered or created an account.
Anonymous users have the most limitations, which are written here Pricing.
Anonymous users risk losing their created email lists and verified lists if they clear their cookies. To avoid this, we highly recommend opening an account.
The percentage of emails that are not delivered to the recipient's inbox, often due to invalid email addresses.
Understanding bounce rates is crucial for maintaining a healthy email list.
This number from 0 to 100 represents the likelihood the email address is valid, expressed as a percentage.
The score for Free and Disposable emails will be 50 by default, because we are not checking SMTP for these types of emails.
See also: Results of verification
A CSV (Comma-Separated Values) file is a plain text file format commonly used to store and exchange tabular data, such as spreadsheets or databases. Learn more: https://en.wikipedia.org/wiki/Comma-separated_values
Data points are specific pieces of information collected or considered during the email verification process.
They are individual metrics or details used to assess the validity and quality of an email address.
Examples of data points in email verification include syntax or domain check.
Email deliverability is the ability of an email to successfully reach the recipient's inbox without being marked as spam or bouncing.
Disposable email addresses are temporary, often single-use email addresses created for short-term purposes.
They are commonly used to avoid spam or for one-time registrations.
Learn more: https://en.wikipedia.org/wiki/Disposable_email_address
A domain is the unique address of a website or email server on the internet, typically formatted as 'example.com'.
Domain Search allows you to find email addresses associated with a specific domain, such as "example.com."
Duplicate emails refer to identical copies of the same email address.
A tool that identifies and retrieves email addresses associated with specific domains or companies.
See also: Email Finder
An email list is a collection or set of email addresses that meet specific criteria or filters set by the user.
The label used to identify and manage your email list.
The system assigns a random name by default, but you can customize it to your preference.
The portion of an email address before the '@' symbol, identifying the specific user or mailbox within a domain (e.g., 'username' in 'username@example.com').
Email verification is the process of confirming the accuracy, validity, and deliverability of an email address to ensure that it is capable of receiving emails.
See also: Email Verification
Email Verification List can have a certain status, depending on your limits as a user, and the progress of the verification process.
Here is a detailed explanation for each status:
A service that checks and validates email addresses to ensure accuracy and deliverability.
See also: Email Verifier
When creating an email list, you can enter the email addresses you want to exclude from the search results into the "Exclude emails" text box.
This ensures that these specific emails are not included in the final results.
The complete domain address, including all labels and the top-level domain, providing a unique web or email identifier.
E.g. 'example.com' is a FQDN of this email address: user@example.com.
The labels in a Fully Qualified Domain Name that are not part of the Public Suffix Domain.
E.g. 'example' in this email address: user@example.com.
A domain name that represents the full domain hierarchy and is listed in a public suffix list.
If an email address was created with one of the Free Email Service Providers, like Gmail, Yahoo, Hotmail, etc., this property will be marked as 'pass', e.g. john.smith@gmail.com
The score for these email addresses will be 50 by default, because we are not checking SMTP for these types of emails.
European Union regulation concerning the protection and privacy of individuals' personal data.
See also: GDPR
An email address that consists of random, meaningless characters, often created to avoid spam filters or as a placeholder (e.g. 'asf1234@xyz.com').
Greylisting technology is temporarily preventing the validation attempt.
If you try submitting the emails marked as greylisted again, they will often be successfully validated on a later try.
Leads are potential customers.
This setting displays the current maximum number of emails allowed per domain, eg. 5,000.
You can adjust this number to a lower value if needed, but not higher than your account's limits.
MX (Mail Exchange) records are DNS records that specify the mail servers responsible for receiving email messages on behalf of a domain.
They play a crucial role in email delivery.
Learn more: https://en.wikipedia.org/wiki/MX_record
Non-recurring plan refers to a plan that does not automatically renew at the end of the billing period.
With a non-recurring plan, you make a one-time payment for a set duration (such as a month or a year) and do not need to manually cancel to avoid automatic renewal.
Once the plan period expires, you must initiate a new purchase if you wish to continue with the same plan.
See also: Pricing
A request made by a customer to purchase a specific product or service.
It includes details such as the type and quantity of items, and payment method.
A parked domain refers to a registered domain name that is temporarily set aside and does not have its own dedicated website or content.
Instead, it typically displays a placeholder page or may redirect visitors to another website.
A property refers to attributes or characteristics associated with an email address.
These properties can include information about the email address's validity, deliverability, and status.
Each property has a status with one of these values: pass, fail, unknown, notused.
See also: Results of Verification
It refers to the external service or system responsible for managing and validating email addresses, typically represented by the registered domain of the mail server hosting the verification service.
The highest level of a domain that can be registered, often used to identify separate entities.
E.g. 'com' is a PSD of this email address: user@example.com.
A registered user is an individual who has created an account, providing personal information and typically gaining access to additional features or privileges.
Check you options here: Pricing.
The part of a domain that can be registered, excluding subdomains.
A label within a domain that is eligible for registration, excluding subdomain labels.
The outcomes and status of email addresses after undergoing the verification process.
See also: Results of Verification
A role-based email address is associated with a specific job or function, such as "support@domain.com" or "info@domain.com."
They are not tied to a specific person but rather a role or department.
See also: Results of Verification
The part of a domain name that appears directly before the top-level domain (TLD), often representing the specific organization or entity (e.g., 'example' in 'example.com').
A protocol for sending email messages between servers. Skymem may use SMTP checks as part of its email verification process.
A restriction or block imposed by a mail server that prevents the sending or receiving of emails, often due to spam prevention or security measures.
Simple Mail Transfer Protocol (SMTP) is the standard for sending emails over the internet.
An SMTP server is a computer that sends, receives, and relays email messages between senders and receivers.
See also: Results of Verification
Learn more: https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol
A spamtrap is an email address specifically created to catch spammers.
Sending emails to a spamtrap can harm your sender reputation.
Learn more: https://en.wikipedia.org/wiki/Spamtrap
A subset of a domain, created by adding a prefix to the main domain.
The specific label that distinguishes a subdomain from the main domain.
The individual labels within a subdomain.
The initial step in email verification, ensuring email addresses adhere to the correct format.
See also: Results of Verification
The last part of a domain name, such as '.com', '.org', or '.net', indicating the highest level of domain classification.
A Verified Email List is a collection of email addresses that have gone through verification process to make sure they are real, working, and trustworthy.
Automated process of systematically browsing and indexing web pages to collect information.