Microsoft Exchange Online alternatives
As of 5 November 2026, 8 scheduling are named by companies instead of Microsoft Exchange Online: Microsoft Outlook by 31,729 companies, Microsoft Exchange by 1,918, Gmail by 1,480.
As of 5 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Microsoft Exchange Online, companies in postings
- 1,461
- Most used alternative
- Microsoft Outlook · 31,729
- Fastest hiring, 90 days
- Microsoft Outlook
- Alternatives ranked
- 8
- Catalogue
- T-1.0.1-prov
Scheduling companies choose instead of Microsoft Exchange Online
Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.
| # | Alternative | Companies | companies | vs Microsoft Exchange Online | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | Microsoft OutlookMicrosoft | 31,729 | 2172% | 180,876 | Microsoft Exchange Online vs Microsoft Outlook → | |
| 2 | Microsoft ExchangeMicrosoft | 1,918 | 131% | 3,885 | Microsoft Exchange Online vs Microsoft Exchange → | |
| 3 | GmailGoogle | 1,480 | 101% | 4,139 | Microsoft Exchange Online vs Gmail → | |
| 4 | Google CalendarGoogle | 390 | 27% | 1,262 | Microsoft Exchange Online vs Google Calendar → | |
| 5 | HCL NotesHCL Technologies | 372 | 25% | 1,130 | Microsoft Exchange Online vs HCL Notes → | |
| 6 | CalendlyCalendly | 180 | 12% | 685 | Microsoft Exchange Online vs Calendly → | |
| 7 | PostfixWietse Venema | 69 | 5% | 87 | soon | |
| 8 | Chili PiperChili Piper | 66 | 5% | 87 | soon |
Filter on any of them, or on Microsoft Exchange Online users who also name an alternative, and open the person who owns the stack.
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8 scheduling are named by companies instead of Microsoft Exchange Online: Microsoft Outlook by 31,729 companies, Microsoft Exchange by 1,918, Gmail by 1,480, measured from their own job postings. (Breaknorm, 5 November 2026, https://breaknorm.co/tools/microsoft-exchange-online/alternatives)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
- 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
- Not includedRatings, prices, feature claims, sponsored positions.
Microsoft Exchange Online alternatives: questions
What is the most used alternative to Microsoft Exchange Online?
Microsoft Outlook: 31,729 companies name it in their own job postings, against 1,461 for Microsoft Exchange Online.
How is this list ranked?
By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.
Does this say which is better?
No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.
Can I get the companies on any of these?
Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.
Get these companies your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on Microsoft Exchange Online
or on what replaces it
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