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This is a demo store. No orders will be fulfilled.
What are the main features and advantages of Microsoft Outlook 2021?
Unified Inbox – Manage mail, calendar, and contacts together easily.
Calendar Scheduling – Plan meetings with reminders and availability tools.
Focused Search – Find emails faster using filters and search.
Smart Sorting – Use rules and categories to stay organized.
Account Support – Connect Exchange, IMAP, and POP accounts reliably.
Offline Access – Read and draft emails without internet.
This product is not posted to the MS account and is not transferable to other devices.
Does not work with Microsoft365.
Download: Outlook 2021
Mail and calendar – Email, meetings, and reminders in one place.
Contacts – Store contacts and build groups for teams.
Search tools – Fast search with filters and refiners included.
Rules and flags – Automate sorting and follow-up reminders quickly.
Shared mailboxes – Access team inboxes with proper permissions set.
Add-in support – Extend Outlook with business integrations and tools.
Microsoft Outlook 2021 is a Windows email and calendar client that keeps communication and scheduling together. It helps individuals and teams stay organized, responsive, and on time.
Daily productivity – Reduce inbox clutter with rules and categories.
Better planning – Schedule meetings and manage reminders in seconds.
Quick retrieval – Find old emails fast using search filters.
Clean workflow – Flag follow-ups and track important conversations easily.
Team readiness – Use shared mailboxes and delegated access smoothly.
Reliable access – Work offline and sync changes when online.
Outlook 2021 refines performance and usability compared to Outlook 2019.
Updated interface improvements for everyday email workflows.
Better search and organization options for large mailboxes.
Ongoing compatibility with modern Microsoft services and security.
Classic Outlook is the full desktop client, while the new Outlook is a modern streamlined experience.
Classic Outlook supports more advanced configuration and legacy workflows.
Classic Outlook typically works better with offline and PST use.
Some add-ins and features differ between the two apps.
Yes, classic Outlook supports PST files for local data storage.
Open PST archives to search older email locally.
Import and export PST for migration and backups.
Keep large mailboxes manageable with archiving strategies.
Yes, Outlook 2021 supports IMAP and POP for many providers.
Use IMAP to sync mail across multiple devices.
Use POP when you prefer local mail download storage.
Configure separate send and receive settings per account.
Yes, you can read and draft messages offline and sync later.
Access cached mail without an active connection.
Write replies and send automatically after reconnecting.
Use calendar and contacts while disconnected as well.
Yes, Outlook supports shared mailboxes and delegated access with permissions.
Open shared inboxes alongside your primary mailbox.
Send messages from shared addresses when allowed.
Manage shared calendars for team scheduling needs.
Yes, Outlook 2021 supports many add-ins used in business environments.
Use add-ins for CRM, signing, and scheduling workflows.
Enable only needed add-ins to keep Outlook responsive.
Review add-in settings to troubleshoot slow startup issues.
Use folders, rules, categories, and flags to stay in control.
Create rules to file newsletters and routine notifications automatically.
Use categories to group messages by project or client quickly.
Flag messages and set reminders for timely follow-up.
"It keeps my email and calendar organized without extra apps."
"Rules and categories make a huge difference for busy inboxes."
"Search helps me find old threads quickly when needed."
"Shared mailboxes work well for team support queues."
"Offline access is handy when travel Wi-Fi is unreliable."
Instant delivery - Product keys and downloads available within minutes.
Activation guarantee - If activation fails, you receive a new key.
Download included - Secure official download link always provided after purchase.
Easy installation - Clear step-by-step instructions guide you through setup.
Genuine licenses - Product keys from audited, legally compliant distribution channels.
Multilingual support - Help in seven languages via chat, email, phone.
Easy exchanges - Problematic keys replaced quickly, without unnecessary bureaucracy.
Transparent pricing - No hidden fees. Fair prices and price plans to get even better prices.
Trusted seller - Over 2800 Trustpilot ratings averaging 4.8 out of 5.
| Operating Systems | Windows 11: Pro / Enterprise Windows 10: Pro / Enterprise / LTSC 2021 / LTSC 2019 Windows Server 2022: Standard / Datacenter Windows Server 2019: Standard / Datacenter |
| Processor | 1.1 GHz or faster, 2-core |
| Memory RAM | 4 GB |
| Hard Disk | 4 GB of available disk space |
| Display | 1280 x 768 screen resolution 64-bit Office required for 4K and higher |
| Graphics | Graphics hardware acceleration requires DirectX 9 or later |
| .NET Version | Some features may require .NET 3.5 or 4.6 and higher to also be installed |
| Note | Some search functionality in Outlook for Windows requires Windows Search |
keys.express and keys.discount is a web platforms for new and used product keys. The product keys for Windows and other software available in the shop of keys.express and keys.discount are cheap, safe, legal and with activation guarantee.
Here you can find some general information about used software, an overview of the most important legal information as well as answers to frequently asked questions from our customers ("FAQ“)
Used software is available for sale in the European Union as well as in Switzerland according to current jurisdiction provided that the necessary conditions are met. The necessary conditions are as follows:
keys.express and keys.discount ensure that the above mentioned requirements are met and that a legal use of the software is guaranteed. The requirements of the European legislation are also met in Switzerland.
You can find further information on:
There is a lot of legal information about the topic of used software. We are more than happy to answer any questions you may have. You can contact us at any time via welcome(at)keys.express. In the meantime, you can also find a short overview of the most important legal information regarding used software here:
For distance contracts concluded by telephone, on the Internet or when ordering from a catalogue, EU law provides for the possibility for consumers to withdraw from the contract for a certain period of time ("right of withdrawal"). A consumer in this sense is any natural person who concludes a legal transaction for purposes that are predominantly neither commercial nor self-employed. In Switzerland we usually speak of consumers.
Consumers have the right to cancel the contract within fourteen calendar days without giving reasons. The revocation period begins on the day the contract is concluded.
In order to exercise your right of withdrawal from keys.express or keys.discount, you must inform us by means of a clear statement (e.g. a letter, fax or e-mail sent by post) of your decision to withdraw from this contract. For this purpose, you can contact us using the following information:
Keys Distribution Ltd
Suite 2, 215 Main Street
Gibraltar Heights, Gibraltar
Phone +423 7989130
Email: welcome@keys.discount
keys.express and keys.discount also provides a template revocation form. In order to comply with the revocation period, it is sufficient to send the notification of the exercise of the right of revocation to Keys Distribution Ltd before the end of the revocation period.
If you revoke this contract, we must reimburse you for all payments which we have received from you for the corresponding order, including delivery costs (with the exception of additional costs which result from the fact that you have chosen a different type of delivery than the cheapest standard delivery offered by us), immediately and at the latest within fourteen calendar days from the day on which we receive notification of your revocation of this contract. For this repayment we will usually use the same means of payment that you used for the original transaction, unless expressly agreed otherwise with you. In no case will you be charged for this refund.