# Create email inboxes using MailSlurp's API
You can create MailSlurp inboxes on demand using the API, dashboard or SDK libraries.
# Randomized addresses
The simplest way to create an inbox is to use a createInbox() method. When passed no parameters MailSlurp will randomly assigned the inbox an email address ending in @mailslurp.com. The returned object looks like this:
{
"id": "32f88182-3b6a-4f6e-8a53-59819931033a",
"userId": "6f68f0cc-4760-4e82-87ad-449c9037773b",
"created": "2019-12-06T13:04:13.998Z",
"emailAddress": "32f88182-3b6a-4f6e-8a53-59819931033a@mailslurp.com"
}
In the above example the inbox's ID is 32f88182-3b6a-4f6e-8a53-59819931033a. The inbox's email address is 32f88182-3b6a-4f6e-8a53-59819931033a@mailslurp.com. Any emails sent to this address will be parsed and stored under that inbox ID.
# Specific addresses
You can also create inboxes using specific addresses. Simply pass the address you wish to use as an emailAddress parameter. For example:
createInbox('user1@mycompany.com')
Note specific email addresses must use a domain that you have created.
# Lifespan
For most paid plans email addresses are permanent. Some unpaid options expire after a month. For automated tests it is recommended that you create new inboxes each test run and clean up afterwards using deleteInbox methods.
# Next steps
Now lets look at how to receive emails with an inbox you have created.
