Open rate sampling (ORS) is a process of email deliverability testing in which email providers attempt to send email messages to a selection of email addresses to determine whether the…

IMAP (Internet Message Access Protocol) is an email retrieval protocol that allows email clients to access email servers in order to retrieve email messages. Email clients that use IMAP include…

A hard bounce is an email that has been returned to the sender because the email address is invalid. There are several reasons why an email address might be invalid,…

A follow up email is an email sent after initial contact has been made in order to continue the conversation. This could be after a meeting, phone call, or email…

Email validation is the process of verifying that an email address is valid and exists. This can be done by verifying the email’s format, the email’s domain, and whether the…

Email throttling is the process of limiting the number of email messages that can be sent in a given period of time. This is usually done to prevent email servers…