A temporary email right from your terminal written in POSIX sh.

# To create a temporary/random email inbox:
tmpmail --generate

# To use a custom email inbox:
tmpmail --generate mycustomemail@1secmail.com

# To list messages and their numeric ID:
tmpmail

# To display the most recent received email:
tmpmail --recent

# To open a specific message:
tmpmail <email_id>

# To view email as raw text without HTML tags:
tmpmail --text <email_id>

# To open email with a specific browser (default is w3m):
tmpmail --browser <browser> <email_id>