Why Are Emails Going to Promotions? Outlook and Gmail Explained

You sent the email. The other person swears they never got it. You check your Sent folder — it went through. So where did it go?

The most common answer: the Promotions tab in Gmail, or the Other inbox in Outlook. These filtering systems are meant to reduce noise, but they have a frustrating side effect — they quietly swallow legitimate business emails without anyone knowing.

This post explains how both systems work, what end users can do to stop important emails from landing there, and the honest limits of what your IT team can control on your behalf.

What Is Happening, Exactly?

Both Microsoft Outlook and Google Gmail use machine learning to sort your incoming mail into categories. The idea is helpful in theory: filter out newsletters and marketing so your primary inbox stays clean. In practice, it frequently misclassifies emails that actually matter to you.

Outlook: Focused Inbox and the "Other" Tab

Microsoft 365's Focused Inbox splits your inbox into two tabs: Focused (emails Outlook thinks are important) and Other (everything else). Outlook uses signals like who you've interacted with before, whether an email was sent to many recipients, and formatting patterns in the message to decide where it goes.

A first-time contact reaching out about a proposal, an invoice from a new vendor, or a notification from a system you don't email back — all are candidates for the Other tab. The problem is that Other isn't labelled as junk or spam, so many users don't realize they have a second inbox to check.

Gmail: The Promotions Tab (and Social, Updates)

Google Workspace and personal Gmail sort incoming messages into tabs: Primary, Social, Promotions, Updates, and Forums. The Promotions tab is the main culprit for missed business emails. Gmail uses similar signals — unsubscribe links, HTML formatting, bulk send patterns, and sender reputation — to decide what goes where.

A beautifully formatted email newsletter from a vendor you actually want to hear from, a receipt from a SaaS tool you use daily, or a booking confirmation can all end up in Promotions even if you'd much rather see them in Primary.

What You Can Do as an End User

The good news is that both platforms give individual users meaningful control. Here's what works in practice:

In Outlook (Microsoft 365)

1. Move a message and train the filter. If an email lands in Other that should be in Focused, right-click it and select "Move to Focused." Outlook will ask if you want to do this for all future messages from that sender — say yes. This is the single most effective action you can take.

2. Check your Other tab regularly. Until you've trained it sufficiently, make a habit of scanning the Other tab. It only takes a few days of active training before Outlook's filter improves noticeably.

3. Turn off Focused Inbox entirely. Go to View > Show Focused Inbox (in the desktop app) or Settings > Mail > Layout > Focused Inbox (in Outlook on the web) and toggle it off. This disables the split and shows all mail in a single inbox. You'll see more noise, but nothing gets hidden.

4. Add senders to your contacts. Outlook heavily weights existing relationships. If a sender is in your contacts, their email is far less likely to be filtered to Other.

5. Manage your Junk Email filters. Separately from Focused Inbox, check your Junk folder regularly and use "Not Junk" to train the spam filter alongside the Focused Inbox filter.

In Gmail (Google Workspace)

1. Drag and drop messages to Primary. Drag an email from Promotions into your Primary tab and click "Yes" when Gmail asks if you want to do this for future messages. Like Outlook, training Google's filter is the most reliable long-term fix.

2. Create a filter. Click the three-dot menu on an email > "Filter messages like this" > "Never send it to Spam" and/or "Categorize as Primary." Filters override the AI categorization.

3. Turn off category tabs. Go to Settings > See all settings > Inbox > Inbox type and switch from "Default" (which enables tabs) to "Priority Inbox" or "All Mail." This removes the Promotions tab entirely, though it changes your overall inbox layout.

4. Star or mark as important. Gmail uses stars and importance markers as strong signals. Marking an email important retroactively tells the algorithm to treat similar messages better going forward.

5. Ask senders to plain-text their emails. Heavily formatted HTML emails with images and large footers score much higher for Promotions classification. If a key contact or vendor can send plain-text messages, they're less likely to be filtered.

What Can Your IT Team Actually Control?

This is where we have to be honest with you, because there's a gap between what people expect IT to fix and what's technically possible.

The short version: IT admins have significant control over junk/spam filtering and can disable some features at the policy level — but they cannot fully override the AI-driven inbox sorting that runs on a per-user basis.

What IT Can Do

• Disable Focused Inbox at the organization level (Outlook). Microsoft 365 admins can push a policy via Exchange Online PowerShell or Outlook policy settings to disable Focused Inbox for all users. This is a meaningful control — and something Always Beyond routinely includes in baseline M365 configurations for clients who prefer a single inbox.
• Configure Exchange Online Protection (EOP) rules. Admins can create transport rules that whitelist specific senders or domains, reducing the likelihood their emails are treated as spam or bulk mail. This doesn't directly affect Focused Inbox, but it does affect deliverability and junk filtering.
• Adjust Safe Senders lists via Intune or Group Policy. Admins can push organization-wide Safe Senders lists, which signal to the filter that certain senders should never be treated as junk.
• Google Workspace email routing and compliance rules. Google Workspace admins can configure inbound routing rules, content compliance filters, and add domains to the allowlist via the Admin Console. These affect spam classification but not the Promotions tab AI sorting.

What IT Cannot Do

• Force individual users' Gmail Promotions tab AI to behave differently. Google does not expose admin-level controls that override per-user machine learning for tab categorization. Admins can turn off tabs for managed accounts in some configurations, but this changes the inbox experience significantly.
• Guarantee that a sender's email reaches Primary or Focused. Even with whitelisting and transport rules, the AI filtering that runs at the client level (especially in Gmail) makes final decisions on a per-message basis.
• Fully automate end-user inbox training. The training signals (dragging emails, marking as important) are user-level actions tied to individual accounts. They can't be applied by an admin on behalf of all users.
• Override Google's Promotions classification for external senders. If a vendor's email is being classified as promotional, the fix is mostly on the sender's side (plain text formatting, unsubscribe link removal, authenticated sending) — not something your IT admin can change.

Think of it this way: IT can set the rules of the building, but Google and Microsoft's AI filters run inside each user's inbox, making their own calls. Admins can influence the environment — they can't override every decision.

Practical Recommendations

Here's what we recommend for most businesses:

• For Outlook / Microsoft 365 users: Have your IT provider disable Focused Inbox at the policy level if your team finds it more confusing than helpful. Pair that with Exchange Online Protection rules for your most important sender domains.
• For Gmail / Google Workspace users: Accept that tabs are largely user-trained. Build a 15-minute habit among your team to check Promotions and Updates for the first two weeks after a new deployment, then actively train the filter using drag-and-drop. Create filters for your highest-priority senders.
• For everyone: If a critical email — an invoice, a contract, an urgent client message — goes missing, check Promotions/Other before assuming it wasn't sent. This simple habit prevents a surprising number of business problems.
  

Need Help Configuring Your Microsoft 365 or Google Workspace Environment?

Always Beyond works with Calgary-area businesses to configure email environments that actually work for their teams. From Exchange Online Protection policies and Focused Inbox settings to Google Workspace admin rules and end-user training, we handle the setup so your team isn't chasing missing emails.

If your inbox setup feels like it's working against you, reach out. We're happy to take a look. Contact us today.