Set Up Email Alias

The Problem

You want to send and receive email as a different address (like sales@yourdomain.com) without managing a whole separate mailbox and inbox for it, or without recipients knowing it's actually going through your main account.

About this problem

An alias lets one mailbox send and receive as if it were a different address, which is different from a separate mailbox (its own login and inbox) or simple forwarding (which only redirects incoming mail, not outgoing). It's the right fit when one person or team genuinely just needs a second identity from their existing inbox, rather than needing a whole separate account to log into.

This comes up for small teams who don't want to pay for or manage a second full mailbox, for a role-based address (support@, sales@) handled by one person, or for keeping an old address usable without a dedicated inbox behind it.

What's Included

• Setting up the alias on your existing mailbox so you can send and receive as the alias address
• Configuring outgoing mail so recipients see the alias address correctly, not your main one
• Checking SPF/DKIM considerations so mail sent as the alias still authenticates properly
• Testing sending and receiving as the alias to confirm it behaves correctly both ways
• A quick note on switching between your main address and the alias when composing mail

What's NOT Included

• Setting up a full separate mailbox with its own login (a different, usually pricier option if that's actually what's needed)
• Alias setups on providers that don't technically support send-as aliasing (would be flagged upfront)
• Ongoing management of multiple aliases across a larger team beyond initial setup

How It Works

1. Confirm the exact alias address needed and which existing mailbox it should be attached to.
2. Check whether the mail provider supports native send-as aliasing, and configure it there if so.
3. Set up the outgoing mail configuration so messages sent as the alias correctly show that address to recipients.
4. Verify SPF and DKIM still authenticate correctly for mail sent using the alias, adjusting records if the provider requires it.
5. Send and receive test messages specifically as the alias to confirm both directions work as expected.
6. Show you how to switch between your main address and the alias when composing new mail.

In practice: you buy the service, send over whatever access or details the job needs, I investigate and do the work, and you confirm it's resolved before we call it done.

Frequently Asked Questions

What's the difference between an email alias and a separate mailbox?

An alias lets an existing mailbox send and receive as a different address without its own separate login or inbox, while a full mailbox is its own completely independent account.

Can I reply to emails so they appear to come from my alias, not my main address?

Yes, that's the main point of a properly configured alias — replies and new messages can be set to show the alias address to recipients instead of your main one.

Does an email alias cost extra on top of my existing mailbox?

Often not, since many providers include a number of aliases per mailbox for free — though this depends on your specific provider and plan.

Will an alias affect my email authentication (SPF/DKIM)?

It can, if the provider needs the alias domain included in SPF or signed with DKIM separately — this gets checked and configured as part of setup so authentication isn't accidentally broken.

Can multiple people use the same email alias?

Typically an alias is tied to one mailbox/login, so if multiple people genuinely need independent access, a shared mailbox or group address is usually the better fit than a simple alias.

How is an alias different from forwarding?

Forwarding only redirects incoming mail to another inbox; an alias lets the same mailbox both receive as, and send as, the alias address — a forwarded address alone can't send outgoing mail as itself.