Maskmail vs 33Mail

33Mail is one of the original email aliasing services, running since 2010. Maskmail is a newer, focused aliasing tool. Here is how they compare.

What is 33Mail?

33Mail gives you a subdomain (e.g., yourname.33mail.com) where any address you invent on the fly automatically forwards to your real inbox. You never need to create an alias in advance: just hand out amazon.yourname.33mail.com and it works. It has been operating for over 15 years.

What is Maskmail?

Maskmail is an email mask firewall. You create one mask per service, forward messages to any inbox, and disable any mask the moment spam starts. It supports custom domains, delivery history, threaded two-way replies that show who sent the email at a glance, and usage-based pricing.

Feature comparison

Pricing

Maskmail charges $0.99/month base plus $0.006 per email.

33Mail free offers unlimited aliases with a 10 MB/month bandwidth cap. Premium is $1/month (50 MB bandwidth, 1 custom domain, 20 anonymous replies/day). Pro is $5/month (500 MB bandwidth, 5 custom domains, 100 replies/day).

Where 33Mail is stronger

• On-the-fly alias creation. No dashboard visit needed. Invent any address at your subdomain and it instantly forwards. This is genuinely convenient.
• Long track record. Operating since 2010. Over 15 years of continuous service builds confidence.
• Very cheap entry. $1/month for a custom domain and anonymous replies is among the cheapest in the market.
• Zero setup. Sign up, pick a username, and start using aliases immediately. No DNS, no configuration.

Where Maskmail is stronger

• No bandwidth limits. 33Mail's free tier caps at 10 MB/month, and even the $1/month plan caps at 50 MB. A handful of image-heavy emails can exhaust your allowance and delivery stops. Maskmail bills per message instead.
• Threaded replies with sender context. Forwarded emails show the original sender's name in your inbox. Hit reply, and the conversation threads naturally for both sides while your real address stays hidden.
• Custom domains without subdomain lock-in. Your masks can use any domain you own. 33Mail's free aliases are locked to *.33mail.com, which some websites block.
• Delivery history. Track every forwarded message. 33Mail provides no delivery visibility.
• Per-mask disable. Instantly disable individual masks from a dashboard.
• Active development. Maskmail is actively developed and maintained. 33Mail's feature set and interface have not evolved significantly in recent years.
• Modern dashboard. A clean, responsive UI for managing masks, domains, and delivery logs.

Something to consider

The most frustrating part of using 33Mail is hitting the bandwidth limit without warning. The free plan caps at 10 MB per month, and even the $1/month Premium plan only gives you 50 MB. A few newsletters with images can use that up in a week, and once you hit the cap, forwarding stops entirely. You will not know an important email bounced until you wonder why someone never replied. There is no delivery log to check, so you are left guessing.

Maskmail charges per message instead of metering bandwidth, so there is no silent cutoff. And the delivery history dashboard lets you confirm at a glance that your emails actually arrived.

Who should pick which?

Choose 33Mail if you want the simplest possible aliasing setup with zero configuration and do not mind bandwidth limits.

Choose Maskmail if you want custom domains, no bandwidth caps, delivery tracking, and a modern management experience.

Bottom line

33Mail pioneered simple email aliasing and its on-the-fly alias creation is still clever. But tight bandwidth limits, a dated interface, and limited management tools show its age. Maskmail offers modern delivery tracking, custom domains, and per-message billing that scales better for active users.