Courier Mail Server vs IceWarp
Courier Mail Server
courier-mta.org
IceWarp
icewarp.comSide by side
| Figure | Courier Mail Server | IceWarp |
|---|---|---|
| Price from | Free | $1.35/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 3 |
| Spec score · Mail Server Software | 8.5 (#1) | 8.3 (#5) |
| Integrations | The server can use LDAP, MySQL, or PostgreSQL-based authentication databases and supports LDAP-based mail routing. | The product page describes Outlook Sync for syncing email, calendar, tasks, and notes with Outlook; the cloud API provides access to calendars, files, notes, contacts, tasks, and emails. |
| Product | Courier is an integrated mail and groupware server providing ESMTP, IMAP, POP3, webmail, and mailing list services. | IceWarp is an all-in-one collaboration platform combining email, messaging, video conferencing, file sharing, and real-time document collaboration in one interface. |
| Security | Courier supports STARTTLS and SSL for ESMTP, IMAP, POP3, and webmail; its ESMTP client can require a certificate signed by a trusted root CA. | The pricing page lists antivirus and antispam with Core, while the site footer displays ISO 9001, ISO 27001, ISO 27017, ISO 27018, ISO 29119-1, SOC 2, and HIPAA compliance badges. |
| Support | The site lists an unmoderated courier-users mailing list for questions, bug reports, and comments, plus a separate read-only announcement list. | The pricing page lists 24/7 support for cloud customers and offers Cloud Plus support with a 24/7 hotline and stated response targets. |
Plans
In their own words
Courier Mail Server
Courier Mail Server has no write-up on Specifiction yet; its figures are above.