Aliases are long-term filters
Email aliases forward messages to your real inbox and are useful when you want long-term control over a relationship. You can disable an alias later while keeping your primary email hidden.
Temporary mail is shorter-lived. It is better for one-time verification, unknown sites, and testing where you do not want ongoing forwarding.
Choose based on recovery needs
If you need account recovery, use an alias or permanent email. If you only need one message, use a temporary inbox.
Questions people ask
No. Use temporary email for short-term signups, tests, downloads, and one-time verification. Use your real email for banking, work, healthcare, and accounts you must recover later.