Side by side
GreenArrow Engine On-Premises vs Microsoft Exchange Online
Both stand on email server software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid Linux
Visit GreenArrow Engine On-Premises Paid AndroidiPhoneMac+2
Exchange Online combines hosted business email with administration, security, and compliance capabilities. Compare the listed mailbox and archive limits for Plan 1 and Plan 2, and confirm pricing before selecting a plan.
Visit Microsoft Exchange OnlineThe facts
| GreenArrow Engine On-Premises | Microsoft Exchange Online | |
|---|---|---|
| Free plan | No | No |
| Open source | Not published | Not published |
| Runs on | Linux | Android, iPhone, Mac, Web, Windows |
| Lowest paid plan | Standard Monthly Lease: $600 a month | See the plans |
| Plans published | 6 | 2 |
| Maker | Not published | Microsoft Exchange Online |
| Website | greenarrowemail.com | microsoft.com |
| On email server software | #31 of 33 | #27 of 33 |
GreenArrow Engine On-Premises: what it does well
Microsoft Exchange Online: what it does well
- Email, calendar, and contacts across major browsers and devices
- Built-in anti-spam and anti-malware filtering
- Supports retention policies, auditing, and message encryption
- Mobile policies can remove company data from lost phones
- Plan 1 supports messages up to 150 MB
What to know first
- No free plan
- Plan 1 has a 50 GB primary mailbox
Alternatives to GreenArrow Engine On-Premises Alternatives to Microsoft Exchange Online The whole list