Email Aliases Are Here: One Mailbox, Every Address Your Business Needs

Most businesses need more than one email address. You need info@, sales@, support@, maybe billing@ and press@ too. The traditional way to handle that is to create a separate mailbox for each one — with its own login, its own password, its own inbox to check.

That works if you have a 200-person company with a dedicated IT team. It doesn't work so well when you're a four-person startup and three of those addresses go to the same person.

Today we're launching Email Aliases on TrekMail — a simpler way to handle multiple business addresses without the overhead.

What Are Email Aliases?

An alias is an additional email address attached to an existing mailbox. It looks like a real address to anyone who sends you mail — but behind the scenes, everything lands in one inbox.

Say your mailbox is alex@yourcompany.com. You add info@yourcompany.com as an alias. When a customer emails info@, the message shows up right next to everything else in Alex's inbox. No second login. No second password. No switching between accounts.

You can add as many aliases as your plan allows — up to 100 per mailbox on the Agency plan.

Why This Matters for Your Business

Stop paying for addresses nobody logs into

Every "role" address you create as a full mailbox costs you a slot in your plan. If info@, sales@, and support@ all go to the same person anyway, that's three mailbox slots wasted. Aliases fix that. One mailbox, as many addresses as you need, no wasted resources.

Look professional from day one

A business that emails from info@yourcompany.com feels different from one that emails from alex.personal.account@gmail.com. Aliases let you set up role-based addresses in seconds — even if your whole team is two people working out of a coffee shop.

Send from any address

Aliases aren't just for receiving. Turn on send-as for any alias, and you can compose and reply as that address. Your customer emails support@yourcompany.com, you reply from support@yourcompany.com — even though you're logged into alex@yourcompany.com.

In Roundcube, Thunderbird, Outlook, or Apple Mail, you just add the alias as an identity. The setup takes about 30 seconds.

Use aliases across multiple domains

If your account has several domains — say yourcompany.com and yourcompany.co.uk — you can create aliases on any of them. A mailbox at alex@yourcompany.com can receive mail sent to alex@yourcompany.co.uk, info@yourcompany.co.uk, or any combination.

This is particularly useful during a domain migration. Moving from oldname.com to newname.com? Add your old addresses as aliases and nothing gets lost while your clients update their address books.

Real-World Scenarios

You're a freelancer with one mailbox jane@janedesign.com. You add per-project aliases — project-alpha@janedesign.com, project-beta@janedesign.com. All emails land in one place, and you can see which project each message belongs to.

You run a small business with five team members. Instead of creating separate mailboxes for info@, sales@, billing@, and press@, you assign them as aliases to the right people. Your office manager gets info@ and billing@. Your sales lead gets sales@. Done.

You're an agency managing client domains. A single mailbox ops@agency.com can have aliases like contact@clientA.com and hello@clientB.com — all funneled into one inbox for faster response times.

How It Works in Practice

Setting up an alias takes four clicks:

1. Go to Mailboxes in your dashboard
2. Click Settings next to the mailbox
3. Type the local part (the bit before the @), pick the domain
4. Hit Add Alias

The alias starts working immediately. No DNS changes, no waiting for propagation, no server restarts.

Once you have aliases set up, you can manage them in bulk — enable or disable groups of them, toggle send-as permissions, or clean up old ones. There's a search bar and filters for active, disabled, and send-as addresses if your list grows long.

Aliases vs. Separate Mailboxes

The two aren't interchangeable, and it's worth knowing when to use which.

Use an alias when the address is just a "front door" — a public-facing name that routes to someone who already has a mailbox.

Create a separate mailbox when someone needs their own private inbox, their own login, or their own set of filters and rules — including mail filters, vacation auto-reply, and Sieve rules (see our mail filters and auto-reply guide for setup details).

What Happens If You Downgrade

If you move to a plan with a lower alias limit, nothing breaks. Your existing aliases keep working — mail continues to arrive, and you can still send from them. You just can't create new ones until you're back within the limit.

We don't delete or disable aliases automatically. Your mail flow stays uninterrupted.

Plans and Pricing

For most small businesses, 30 aliases on the Starter plan is more than enough. If you're managing multiple brands or client domains, Pro and Agency give you the room to scale.

For Teams That Automate

Aliases are fully available through the TrekMail REST API and MCP server. You can create, list, update, and delete aliases programmatically — which matters if you're onboarding clients in bulk or managing email infrastructure through scripts and AI agents.

API endpoints: GET/POST/PATCH/DELETE /api/v1/mailboxes/{id}/aliases
MCP tools: list_aliases, create_alias, update_alias, delete_alias

Email Aliases are live right now for all paid plans. Log into your dashboard, open any mailbox's settings, and the Aliases tab is right there waiting.

If you're not on TrekMail yet — start at trekmail.net. The Nano plan is free, and upgrading to Starter to access aliases takes about a minute.

Questions? Reach out at trekmail.net/support.