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Email Client Software
K-9 Mail
Zimbra Desktop
K-9 Mail-vs-Zimbra Desktop
Compare K-9 Mail and Zimbra Desktop
Social Share Options
All Categories
Email Client
All Reviewers
Small-Business Reviewers
Mid-Market Reviewers
Large Enterprise Reviewers
Save to Research Board
At a Glance
Pricing
Ratings
Features
Reviews
Alternatives
Discussions
Add Product
K-9 Mail
(13)
4.5
out of
5
K-9 Mail
By
Opensource
Zimbra Desktop
(22)
4.4
out of
5
Zimbra Desktop
By
Synacor
At a Glance
Star Rating
(13)
4.5
out of
5
(22)
4.4
out of
5
Market Segments
Small-Business (46.2% of reviews)
Information
Mid-Market (45.5% of reviews)
Information
Pros & Cons
Not enough data
Not enough data
Entry-Level Pricing
No pricing available
No pricing available
K-9 Mail
Star Rating
(13)
4.5
out of
5
Market Segments
Small-Business (46.2% of reviews)
Information
Pros & Cons
Not enough data
Entry-Level Pricing
No pricing available
Learn more about K-9 Mail
Zimbra Desktop
Star Rating
(22)
4.4
out of
5
Market Segments
Mid-Market (45.5% of reviews)
Information
Pros & Cons
Not enough data
Entry-Level Pricing
No pricing available
Learn more about Zimbra Desktop
K-9 Mail vs Zimbra Desktop
Reviewers felt that Zimbra Desktop meets the needs of their business better than K-9 Mail.
When comparing quality of ongoing product support, reviewers felt that K-9 Mail is the preferred option.
For feature updates and roadmaps, our reviewers preferred the direction of Zimbra Desktop over K-9 Mail.
Pricing
Entry-Level Pricing
K-9 Mail
No pricing available
Zimbra Desktop
No pricing available
Free Trial
K-9 Mail
No trial information available
Zimbra Desktop
No trial information available
Ratings
Meets Requirements
8.8
11
8.9
20
Ease of Use
8.5
11
8.3
20
Ease of Setup
Not enough data
Not enough data
Ease of Admin
Not enough data
Not enough data
Quality of Support
8.3
8
8.2
19
Has the product been a good partner in doing business?
Not enough data
Not enough data
Product Direction (% positive)
7.1
12
7.7
20
Features by Category
Email Client
Hide 11 Features
Show 11 Features
Not enough data
8.7
10
Inbox Tools
Unified Inbox
Not enough data
9.5
(won by default)
10
Filters
Not enough data
8.8
(won by default)
10
Reminders
Not enough data
8.3
(won by default)
10
Notifications
Not enough data
9.0
(won by default)
10
Coordination Tools
Calendar
Not enough data
9.1
(won by default)
9
Contacts
Not enough data
8.3
(won by default)
10
Task Management
Not enough data
8.9
(won by default)
9
Software Options
Desktop Application
Not enough data
8.3
(won by default)
10
Mobile Application
Not enough data
7.9
(won by default)
8
Email Client - Agentic AI
Autonomous Task Execution
Not enough data
Not enough data
Cross-system Integration
Not enough data
Not enough data
Categories
Categories
Shared Categories
K-9 Mail
Zimbra Desktop
K-9 Mail and Zimbra Desktop are categorized as
Email Client
Unique Categories
K-9 Mail has no unique categories
Zimbra Desktop has no unique categories
Reviews
Reviewers' Company Size
K-9 Mail
Small-Business
(50 or fewer emp.)
46.2%
Mid-Market
(51-1000 emp.)
30.8%
Enterprise
(> 1000 emp.)
23.1%
Zimbra Desktop
Small-Business
(50 or fewer emp.)
18.2%
Mid-Market
(51-1000 emp.)
45.5%
Enterprise
(> 1000 emp.)
36.4%
Small-Business
(50 or fewer emp.)
46.2%
18.2%
Mid-Market
(51-1000 emp.)
30.8%
45.5%
Enterprise
(> 1000 emp.)
23.1%
36.4%
Reviewers' Industry
K-9 Mail
Computer Software
15.4%
Venture Capital & Private Equity
7.7%
Translation and Localization
7.7%
Retail
7.7%
Pharmaceuticals
7.7%
Other
53.8%
Zimbra Desktop
Oil & Energy
13.6%
Information Technology and Services
13.6%
Writing and Editing
9.1%
Higher Education
9.1%
Education Management
9.1%
Other
45.5%
Alternatives
K-9 Mail Alternatives
Outlook
Add Microsoft Outlook
Thunderbird
Add Thunderbird
BlueMail
Add BlueMail
Spike
Add Spike
See all alternatives
Zimbra Desktop Alternatives
Thunderbird
Add Thunderbird
Outlook
Add Microsoft Outlook
Spike
Add Spike
Front
Add Front
See all alternatives
Discussions
K-9 Mail Discussions
K-9 Mail has no discussions with answers
See all discussions
Zimbra Desktop Discussions
Zimbra Desktop has no discussions with answers
See all discussions
Ask K-9 Mail a Question
Contact K-9 Mail
Ask Zimbra Desktop a Question
Contact Zimbra Desktop
Spotlight Categories
Workforce Management Software
Restaurant POS Systems
Product Information Management (PIM) Systems
Employee Recognition Software
At a Glance
Pricing
Ratings
Features
Reviews
Alternatives
Discussions
Add Product
K-9 Mail
Zimbra Desktop
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