Premium Inboxes Microsoft 365 Coupon Code: GET20 for 20% OFF
The Premium Inboxes coupon code for Microsoft 365 inboxes is GET20. Enter it in the “Apply Coupon” field at checkout to take 20% off your first payment: on the 1–249 tier your first 4-week bill drops from $3.50 to $2.80 per inbox, so 30 inboxes cost $84.00 instead of $105.00. GET20 is a one-time discount per customer and later bills are at the normal price. Microsoft 365 inboxes are delivered in 6 hours or less.
GET20 for Microsoft 365: Key Facts
| Coupon code | GET20 |
|---|---|
| Discount | 20% off your first payment |
| First bill, 1–249 inboxes | $3.50 → $2.80 per inbox |
| First bill, 250–1,249 inboxes | $3.00 → $2.40 per inbox |
| First bill, 1,250–2,499 inboxes | $2.80 → $2.24 per inbox |
| 2,500+ inboxes | Custom plan |
| Billing | Every 4 weeks; bills after the first are at the normal price |
| Delivery | 6 hours or less |
| Daily sending | 15 cold emails per inbox |
| Connection | OAuth connection to your sequencer |
| Setup included | DKIM, DMARC, MX, SPF, custom domain tracking and domain forwarding on domains you provide |
| Replacements | Unlimited free replacement inboxes if performance drops |
| Limit | One use per customer |
| Last updated | October 10, 2026 |
Microsoft 365 Inbox Prices With GET20
| Inboxes | Cold emails / day | Normal price / 4 weeks | First 4 weeks with GET20 |
|---|---|---|---|
| 30 | 450 | $105.00 | $84.00 |
| 100 | 1,500 | $350.00 | $280.00 |
| 250 | 3,750 | $750.00 | $600.00 |
| 1,250 | 18,750 | $3,500.00 | $2,800.00 |
Based on Premium Inboxes' per-inbox tiers and 15 cold emails per inbox per day. GET20 discounts the first payment only; later bills are at the normal price.
How to Apply GET20 to Microsoft 365 Inboxes
- 1
Copy GET20
Copy the coupon code GET20.
- 2
Choose Microsoft 365
Open Premium Inboxes, pick Microsoft 365 as your inbox provider and set how many inboxes you need.
- 3
Click "Apply Coupon"
In the checkout cart for Microsoft 365 Business Inboxes, click "Apply Coupon" under the subtotal.
- 4
Enter GET20
Enter GET20 and click Apply. Your first payment drops by 20% before you proceed to checkout.
What Outlook Requires From Senders
In April 2025 Microsoft announced that domains sending more than 5,000 emails a day to Outlook consumer addresses must pass SPF and DKIM and publish a DMARC policy of at least p=none, aligned with SPF or DKIM. Mail that doesn’t comply is sent to Junk first and may later be rejected.
Premium Inboxes configures SPF, DKIM, DMARC and MX records on every domain before your Microsoft 365 inboxes are delivered, and connects each inbox to your sequencer with OAuth.
Source: Microsoft: Outlook’s new requirements for high-volume senders
Microsoft 365 or Google Workspace?
Pick Microsoft 365 inboxes if you need them live fastest: Premium Inboxes delivers them in 6 hours or less and connects each one to your sequencer with OAuth. Microsoft rates each inbox for the same 15 cold emails a day as Google Workspace, so the switch doesn’t cost you sending volume.
Both cost the same per inbox and GET20 works on both, so you can also order a mix: many teams split inboxes across Google and Microsoft so a change at one provider doesn't stop all of their sending.
Microsoft 365 Coupon FAQ
What is the Premium Inboxes coupon code for Microsoft 365?
The code is GET20. Click "Apply coupon" in the Premium Inboxes checkout and enter GET20 to take 20% off your first payment for Microsoft 365 inboxes.
How much do Microsoft 365 inboxes cost with GET20?
With GET20, your first 4-week bill for Microsoft 365 inboxes is $2.80 per inbox for 1–249 inboxes (normally $3.50), $2.40 for 250–1,249 (normally $3.00) and $2.24 for 1,250–2,499 (normally $2.80). Later bills are at the normal price.
Does GET20 apply to every bill?
No. GET20 takes 20% off your first payment only. Premium Inboxes bills every 4 weeks, and its checkout shows the next bill at the normal price: for 30 inboxes, $84.00 first, then $105.00.
How fast are Premium Inboxes Microsoft 365 inboxes delivered?
Premium Inboxes delivers Microsoft 365 inboxes in 6 hours or less, with DKIM, DMARC, MX and SPF already configured.
How many cold emails can each Microsoft 365 inbox send?
Premium Inboxes rates each Microsoft 365 inbox for 15 cold emails per day, the same as its Google Workspace inboxes. 30 inboxes give you about 450 emails a day.
Does GET20 also work on Google Workspace inboxes?
Yes. GET20 takes 20% off the first payment for both Google Workspace and Microsoft 365 inboxes from Premium Inboxes.
Can I use GET20 more than once?
No. GET20 is a one-time discount per customer: 20% off your first eligible purchase only. Later bills are at the normal price.