DOMAIN=temp.yourdomain.com
Let’s end with a concrete, 20-minute tutorial to create a temporary email with a custom domain using SimpleLogin (the current industry leader).
Prerequisites: A domain name (e.g., tmp.john.com) and $4.
Step 1: Sign up for SimpleLogin.io (Premium plan starts at $3.99/mo). create temporary email with custom domain
Step 2: Go to Domains > Add Domain. Enter tmp.john.com.
Step 3: Copy the DNS records provided:
Step 4: Paste these into your domain registrar’s DNS zone file. Wait 5 minutes for propagation. DOMAIN=temp
Step 5: In SimpleLogin, click "Catch-All" toggle to ON. Now, ANY email sent to anything@tmp.john.com is caught.
Step 6: Go to the "Aliases" tab. You will see every "temporary" address that has received mail.
Step 7: To create a temporary email instantly: Step 4: Paste these into your domain registrar’s
Step 8: To delete: Click the Trash icon next to the alias. The email address becomes inert forever.
Temporary emails (also known as disposable emails) are a critical tool for maintaining privacy, preventing spam, and testing software workflows. However, public temporary email domains are frequently blacklisted by web services, preventing user registration or verification.
Creating a temporary email system on a custom domain bridges the gap between anonymity and legitimacy. It allows a user to maintain a "burner" identity while operating under a domain that is not flagged as spam by default.
A modern mail server written in Node.js. You can use it to programmatically create temporary emails.
A temporary email with a custom domain is a short-lived email address that uses a domain name you own. Unlike public disposable email services, you control the domain, so the addresses can look legitimate (e.g., trial@yourbrand.com). These addresses automatically expire or can be deleted after a certain time, preventing long-term spam.