Disposable Reply Addresses
Last updated 29 Apr 2026
5 views
📧 PrMail — Private Email
What Are Disposable Reply Addresses?
When you reply to someone outside PrMail, PrMail can automatically create a temporary alias for that conversation. The recipient sees something like [email protected] instead of your real email address. Think of it as a burner phone number — but for email.
How It Works
- You receive an email from
[email protected]. - You hit Reply.
- PrMail automatically creates a temporary alias like
[email protected]and uses it as the From address. - Bob sees
[email protected]in his inbox — he never learns your real[email protected]address. - If Bob replies back, the alias forwards to your real inbox.
- After the configured expiry period, the alias stops working.
Enabling Disposable Replies
- Go to Settings in the PrMail sidebar.
- Find the Disposable Reply Addresses section.
- Tick Enable disposable reply addresses.
- Choose the expiry period: 7, 14, 30, 60, or 90 days.
- Click Save.
Key Behaviours
- Same alias per sender — if you reply to the same person multiple times, PrMail reuses the same alias (as long as it hasn't expired). This keeps conversations consistent.
- External only — disposable replies only activate when replying to addresses outside your domain. PrMail-to-PrMail replies use your real address.
- Replies only — new compositions you initiate always use your real address. Disposable addresses only engage when you're replying to someone who contacted you first.
- Auto-expiry — after the configured period, the alias stops accepting mail. The mapping is deleted from the database.
Viewing Active Aliases
The settings page shows a count of your active disposable addresses. Each alias records who it maps to, how many replies have been sent through it, and when it was last used.
Why Use This?
Even if you trust someone today, circumstances change. A company you replied to might sell their email list. An acquaintance might forward your email to someone you don't know. With disposable reply addresses, your real address stays private — and if an alias starts getting spam, it'll just expire on its own.