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When South African businesses choose between an email alias vs shared mailbox, they're not just picking a label for an inbox — they're deciding who can respond to customers, what happens to message history when a staff member leaves, and, if they're on Google Workspace, whether the feature they want even exists in the form they expect.
Whether you frame it as email alias vs shared mailbox or the other way around as shared mailbox vs email alias, the core question is always the same: how many people need to read and respond from that address?
Both options let you receive mail at a role address like info@yourbusiness.co.za or support@yourdomain.co.za, but the way they store messages, handle replies, and survive staff turnover is entirely different. Understanding these differences is as foundational to your digital setup as choosing the right platform — a decision covered in our complete guide to website builders in South Africa.
The right answer depends on your team size, your email platform, and obligations you may not have thought about yet. Businesses already comparing platforms can read our breakdown of Google Workspace vs Microsoft 365 for South African businesses alongside this guide, since the two options behave very differently on each platform.
Quick Answer
An email alias is an alternative address that delivers to one person's existing inbox — free, instant to set up, and suitable for a sole operator who fields info@, quotes@, and accounts@ all by themselves. A shared mailbox is a separate address with its own message store that multiple team members can access simultaneously, without sharing a password.
Choosing between an email alias vs shared mailbox comes down to one question: how many people need to read and reply from that address? If the answer is "just me," an alias is simpler. If the answer is "two or more of us, now or eventually," a shared mailbox (or its Google Workspace equivalent) is the right structure.
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How Each Platform Handles These Options
Your Four-Factor Decision Guide
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Get a Free Platform AssessmentEmail Alias vs Shared Mailbox: The Exact Difference
An email alias is not a separate account — it is an alternative label that routes incoming mail into an existing user's inbox. The owner reads all alias mail alongside their regular messages, replies by switching the "From" address, and is the only person with any visibility of those conversations.
A shared mailbox, by contrast, is a standalone mailbox with its own address, its own storage, and its own access list. Multiple team members log into it through their own credentials and see exactly the same conversation history. In the email alias vs shared mailbox comparison, this single difference in who holds the message thread determines almost every downstream decision.
| Feature | Email Alias | Shared Mailbox |
|---|---|---|
| What it is | Alternative address routing to one person's existing inbox | Separate address with its own storage, accessible by multiple users |
| Who sees incoming mail | The alias owner only | All permitted team members simultaneously |
| Shared conversation history | No — only the owner's view | Yes — one shared thread view for the whole team |
| Reply attribution | From the alias address (with send-as configured) | From the shared address (or "on behalf of") |
| Survives staff departure | No — disappears when account is removed | Yes — history and access persist independently |
| Extra cost | None on either major platform | None up to 50 GB on Microsoft 365; free via Google Groups on Workspace |
| Best for | One operator managing multiple role addresses | Any team of two or more sharing a functional inbox |
Key Takeaway
The single most important distinction: an alias routes to one inbox; a shared mailbox creates one inbox that multiple people can access. If you need two people to reply from the same address without forwarding copies to each other, only a shared mailbox delivers that cleanly.
How Each Platform Handles These Options
Microsoft 365 supports both email aliases and shared mailboxes natively from the Admin Centre; Google Workspace has no native shared mailbox, so teams use Google Groups Collaborative Inbox or Gmail delegation instead.
Microsoft 365
Microsoft 365 supports both options natively from the Admin Centre. Setting up an email alias Microsoft 365 stores as a proxy address takes under a minute — you add it via the Admin Centre under Users, then select Manage username and email.
Shared mailboxes are created as a distinct mailbox type — they do not need their own paid license up to 50 GB of storage, but every user who accesses the mailbox must hold their own licensed Exchange Online account. The Microsoft 365 admin documentation notes a maximum of 25 users with access permissions; if more than 25 need the mailbox, Microsoft recommends switching to a Microsoft 365 Group. Note that a subscription must include Exchange Online — Microsoft 365 Apps for Business (the desktop-apps-only plan) does not include it.
Google Workspace
Google Workspace allows up to 30 aliases per user at no extra cost — configured in the Admin console and effective immediately. Looking for a shared mailbox Google Workspace supports natively? It doesn't exist under that name. What Google Workspace does not have is a native shared mailbox equivalent — to give multiple team members access to a single functional address, you have three routes:
- Google Groups Collaborative Inbox — a free group address that functions like a shared queue. Members see all messages and can assign, reply, and mark conversations resolved. This is the closest native equivalent to a Microsoft 365 shared mailbox.
- Gmail delegation — grants named individuals access to a specific Gmail account. The delegate can read, send, and delete on behalf of the account owner. Useful for an executive/assistant setup; less suited to team-wide access.
- Third-party shared inbox tools — tools like Hiver, Keeping, or Front layer shared inbox functionality on top of Gmail at an additional monthly cost per user.
Google Workspace pricing starts at $7 per user per month (Starter), $14 per user per month (Standard), and $22 per user per month (Plus), all billed in USD. South African businesses pay in rand through resellers at the prevailing exchange rate, plus 15% VAT. Check the Google Workspace pricing page for current plan details.
Platform Reality Check
If you search "shared mailbox" in Google Workspace admin settings, you will not find it. Google Workspace handles team email through Groups and delegation — functionally similar, structurally different. Understanding this distinction before you set up a new role address saves significant rework later.
Your Four-Factor Decision Guide
Four factors determine the right email structure for South African operators: team size, email platform, address permanence, and POPIA audit-trail requirements. Getting any one wrong means rework — use this table to match your situation to the correct setup.
| Your Situation | Right Choice | Why |
|---|---|---|
| Solo founder handling info@, quotes@, accounts@ | Email aliases on your primary account | Zero extra cost; one inbox to manage; no second login |
| Two or more people, Microsoft 365 plan with Exchange | Shared mailbox (free up to 50 GB) | Native, no extra license needed, full thread history shared |
| Two or more people, Google Workspace | Google Groups Collaborative Inbox | No native shared mailbox; Groups is the free native equivalent |
| Temporary or seasonal role address | Alias on an existing account | Easier to remove; no orphaned mailbox to manage after the season |
| High staff turnover, critical role address (support@, accounts@) | Shared mailbox or Collaborative Inbox | Message history and access survive departure; alias dies with account |
| Team larger than 25 people accessing the same address | Microsoft 365 Group or Google Group | M365 shared mailbox supports a maximum of 25 users with access permissions; Groups scale freely |
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Request a Setup ReviewPOPIA and Role Addresses: What SA Operators Miss
South African businesses operating under POPIA cannot treat address structure as a purely technical choice. Under POPIA s69, once a contact objects, you must stop sending unsolicited electronic marketing to that contact; under s11(3), the objection right extends to all direct marketing processing, including non-electronic channels. That obligation applies regardless of which address the objection arrives at — including generic addresses like info@, support@, or accounts@. Full guidance on what POPIA requires for outbound communications is covered in our POPIA marketing compliance guide.
Here is where the alias vs shared mailbox decision becomes a compliance risk:
The practical instruction: if a role address receives customer communications that may include opt-out requests, it should sit in a shared address or Collaborative Inbox — not on a named individual's account. This is not just a structural preference; it is the address type that gives you the audit trail POPIA requires.
For every shared mailbox South Africa teams create to handle customer-facing roles, ensure at least two licensed staff members have access so no single departure creates a coverage gap.
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Get a Free ConsultationWhy South African Businesses Choose Growth Pulse Media
Growth Pulse Media was founded by Dirk van Greuning, who built and scaled a large South African ecommerce business before moving into agency work. That operating background means the advice here comes from someone who has actually configured role addresses, dealt with staff turnover, and navigated the practical friction of shared inboxes at scale — not from someone reading the documentation for the first time.
Our web design service for South African businesses covers the full digital setup — from domain registration and hosting to email configuration and platform integration. We run a deliberately limited client load so every engagement gets senior attention, and all execution happens in-house with no outsourcing to junior contractors.
We are a registered Shopify Partner and Omnisend Certified Partner, with hands-on experience across the platforms South African operators actually use: PayFast, Peach Payments, Yoco, The Courier Guy, Aramex, and the email platforms that connect to your website's checkout and CRM.
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Frequently Asked Questions
Can I set up an alias on a shared mailbox in Microsoft 365?
Yes — a shared mailbox in Microsoft 365 can have additional proxy addresses (aliases) added to it in the same way a regular mailbox can. This means your shared mailbox can receive mail at support@, help@, and customerservice@yourdomain.co.za, all landing in the same shared queue. Configure these from the Microsoft 365 Admin Centre under the shared mailbox settings.
Does a shared mailbox in Google Workspace cost extra?
Google Workspace does not have a native shared mailbox, so the question is what alternative you use. A Google Groups Collaborative Inbox costs nothing beyond your existing Workspace subscription. Gmail delegation also uses only existing licensed accounts. Third-party shared inbox tools (Hiver, Keeping, Front) add a per-user monthly cost on top of your Google Workspace plan — typically from a few US dollars per user per month upward.
What happens to email aliases when a staff member leaves?
When a user account is deleted in either Google Workspace or Microsoft 365, any aliases attached to that account are removed. Mail sent to those aliases will either bounce or go undelivered depending on how the platform handles removed addresses. Before offboarding a staff member, reassign any role aliases to another account, or convert the address to a proper shared mailbox or group to preserve continuity.
Does a shared mailbox count as a separate inbox for POPIA purposes?
POPIA does not distinguish between mailbox types — it requires that opt-out objections be honoured regardless of where they arrive. The operational advantage of a shared mailbox is that the opt-out record stays visible to whoever manages the function after a staff departure. A shared mailbox does not create any additional POPIA obligation; it simply makes it easier to meet the ones that already exist.
How many email aliases can one Google Workspace user have?
Google Workspace allows up to 30 aliases per user at no additional cost. These are configured by an administrator in the Google Admin console, not by the user themselves. All aliases deliver to the same primary inbox; the user can reply using any alias address by adjusting the "From" field when composing.
Get Your SA Business Email Structure Right
Growth Pulse Media helps South African businesses configure their digital setup properly from day one — domain, hosting, email architecture, and platform integration. We work with the tools your business actually uses: Google Workspace, Microsoft 365, PayFast, Peach Payments, and the email platforms connected to your site. No obligation — we will get back to you within 24 hours.
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