The main privacy benefit
A disposable address keeps your permanent email out of a low-risk form. If that website later sends marketing messages, the clutter is separated from the inbox you use for personal or professional communication.
The biggest risk: temporary access
A temporary inbox can disappear, expire or become inaccessible. That makes it unsuitable for password recovery, purchases, financial accounts or anything you may need to prove ownership of later.
Treat temporary email as a convenience tool
Use it for short-term receiving where losing the address would have little consequence. Use a permanent mailbox for anything tied to money, identity, work, education, healthcare or long-term account access.
MailDash-specific privacy notes
MailDash stores the current temporary mailbox session in browser local storage so it can survive a normal refresh. The service is supported by advertising, and third-party advertising providers may use browser technologies under their own policies. Read the MailDash Privacy Policy for the current data-flow description.