Mail Validator


The Mail Validator action checks if an email address is valid or not.

When the check passes the success hop will be followed otherwise it will go to the fail hop


Option Description

Workflow action name

The name of the workflow action.


The email address, or list (separated by spaces) that have to be checked.

SMTP check?

By default, Hop will only check email address structure (using regular expression). If you want to perform a SMTP check, please select this option and fill Email sender (see after). Hop will extract domain name from the supplied email address (to check) and will try to get all exchangers from the domain name. Each exchanger will be queryed.

Time out

In order to perform a SMTP check, Hop will open a socket on the target SMTP host. Specify here the socket time out (by default 0).

Email sender

If you select "SMTP check?" option, this field is mandatory. Hop will need sender email address to query SMTP host.

Default SMTP server

If you know which SMTP server to query, please specify it here, Hop will then query only this one.