# Mail Validator

### Description

The `Mail validator` action checks if an email address is valid.

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

### Options

| Option              | Description                                                                                                                                                                                                                                                                                                                                                                      |
| ------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Action name         | The name of the workflow action.                                                                                                                                                                                                                                                                                                                                                 |
| Email address       | The email address, or list (separated by spaces) that have to be checked.                                                                                                                                                                                                                                                                                                        |
| Settings            |                                                                                                                                                                                                                                                                                                                                                                                  |
| SMTP check?         | <p>By default, Apache Hop will only check email address structure (using regular expression).</p><p>If you want to perform a SMTP check, please select this option and fill Email sender (see after).</p><p>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 queried.</p> |
| 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.                                                                                                                                                                                                                                                                               |


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