Microsoft Exchange Online vs HCL Domino

Microsoft Exchange Online9.3Visit HCL Domino8.4Visit

Higher score Microsoft Exchange Online #1 in Mail Server Software 9.3/10 Paid ✓ 0 of 5 features Visit Microsoft

vs

HCL Domino #8 in Mail Server Software 8.4/10 Pricing on request ✓ 5 of 5 features Visit HCL Domino

• Microsoft Exchange Online fits best

  Microsoft-centric business email

• HCL Domino fits best

  Enterprise mail with Domino application integration

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature	Microsoft Exchange Online 9.3/10 Visit ↗	HCL Domino 8.4/10 Visit ↗
At a glance
Editor score	9.3	8.4
Ranking	#1 in Mail Server Software	#8 in Mail Server Software
Best for	Microsoft-centric business email	Enterprise mail with Domino application integration
Pricing model	Paid	Paid
Starting price	—	Pricing on request
Free plan	—	Not checked yet
Free trial	—	—
Deployment	Cloud, Browser extension	Self-hosted
Platforms	Web, Windows, macOS, iOS, Android	Web, Windows, Linux, iOS, Android
Support	Phone, Docs · 24/7	Community, Docs
Integrations	2 integrations	7 integrations
Built for	Small business, Mid-market, Enterprise	Mid-market, Enterprise
Features Microsoft Exchange Online 0/5 · HCL Domino 5/5
Webmail interface	Not checked yet	✓ (best)
IMAP/POP3 access	Not checked yet	✓ (best)
Mobile sync	Not checked yet	✓ (best)
Antispam tools	Not checked yet	✓ (best)
High availability	Not checked yet	✓ (best)
Specs
License model	Not checked yet	Subscription
Mailbox limit	Not checked yet	Not checked yet
Our review
Pros	Outlook access across web, desktop, and mobile platforms Spam filtering, archiving, DLP, and compliance features Migration support for Exchange, IMAP, PST, and other systems	Clustered mail servers support replicated databases and routing failover. Filtering, quarantine, SPF, DKIM, scanning, and encryption support mail controls. Web, mobile, Outlook, and REST access cover diverse enterprise workflows.
Cons	Paid access is required for every mailbox Plan 1 limits primary mailbox storage to 50 GB Some archive capabilities depend on licensing and admin enablement	Quote-based procurement requires contacting HCLSoftware or a business partner. The platform may be broader than needed for mail-only deployments. Domino-specific administration may not suit teams seeking a narrow mail service.
Our verdict	Microsoft Exchange Online is a cloud-hosted business email and calendaring service for organizations that want custom-domain mailboxes alongside Outlook access. It supports email, calendars, contacts, shared mailboxes, browser access,… Read the review →	HCL Domino combines organizational messaging, application hosting, workflow support, and collaboration in an enterprise server platform. It supports SMTP, IMAP, POP3, MIME, and Notes-based mail routing and access, with clients including… Read the review →

Strengths and trade-offs

• Microsoft Exchange Online — where it wins

  • Outlook access across web, desktop, and mobile platforms
  • Spam filtering, archiving, DLP, and compliance features
  • Migration support for Exchange, IMAP, PST, and other systems

  Where it doesn't

  • Paid access is required for every mailbox
  • Plan 1 limits primary mailbox storage to 50 GB
  • Some archive capabilities depend on licensing and admin enablement

• HCL Domino — where it wins

  • Clustered mail servers support replicated databases and routing failover.
  • Filtering, quarantine, SPF, DKIM, scanning, and encryption support mail controls.
  • Web, mobile, Outlook, and REST access cover diverse enterprise workflows.

  Where it doesn't

  • Quote-based procurement requires contacting HCLSoftware or a business partner.
  • The platform may be broader than needed for mail-only deployments.
  • Domino-specific administration may not suit teams seeking a narrow mail service.

• Microsoft Exchange Online9.3/10 · Paid

  A Microsoft-centric hosted mailbox service with Outlook, archiving, compliance, and migration tools.

  Visit MicrosoftFull verdict →
• HCL Domino8.4/10 · Pricing on request

  A broad enterprise mail and application platform built around Domino integration.

  Visit HCL DominoFull verdict →