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Cyrus IMAP

Cyrus IMAP

Cyrus IMAP

  • Download
    • Get Cyrus
      • Distribution Package
        • CentOS
        • Debian
        • Fedora
        • openSUSE
        • Red Hat Enterprise Linux
        • Ubuntu
      • Build and Install Yourself
        • Use a release packaged tarball
        • Use the source from Git
      • External Tools
      • Licensing
    • Release Notes
      • Stable Version
      • Development Version
      • Supported Product Series
        • Series 3.6
        • Series 3.4
        • Series 3.2
        • Series 3.0
        • Series 2.5
      • Development snapshots
        • Cyrus IMAP 3.7 Tags
        • Cyrus IMAP 3.5 Tags
        • Cyrus IMAP 3.3 Tags
        • Cyrus IMAP 3.1 Tags
      • Older Versions
        • Series 1
        • Series 2: 2.0 - 2.4
    • Notes for Packagers
      • Binary naming
      • Sample configuration files
      • Predefined configurations
        • The configuration file for master: cyrus.conf
        • The configuration file for the various programs: imapd.conf
      • Services in /etc/services
  • Quickstart Guide
    • Introduction to Cyrus IMAP
      • What is IMAP?
    • Quick install
      • 1. Install Cyrus package(s)
      • 2. Setup the cyrus:mail user and group
      • 3. Setting up authentication with SASL
      • 4. Setup mail delivery from your MTA
      • 5. Protocol ports
      • 6. Configuring Cyrus
      • 7. Launch Cyrus
  • Overview
    • Features
      • Security and Authentication
        • Kerberos Authentication
        • LDAP Authentication
        • SQL Authentication
        • Access Control
        • Sealed System Design
      • Mailbox Management
        • Automatic Creation of Mailboxes
        • Mailbox Namespaces
        • Virtual Domains
        • Mailbox Annotations (METADATA)
        • Mailbox Distribution
      • Message Management
        • Delayed Delete
        • Delayed Expunge
        • Message Annotations (METADATA)
        • Duplicate Message Delivery Suppression
        • Shared Seen State
        • Server Side Filtering (Sieve)
        • Event Notifications
      • Calendar and Contact (DAV) Collection Management
        • CalDAV Collections
        • DAV Components
        • DAV Collection Management
        • CardDAV Support
      • Storage
        • Mail Spool Partitions
        • Mailbox Metadata Partitions
        • Archiving
        • Quota
        • Single-Instance Store
      • Load Management
        • Cyrus IMAP Murder (Server Aggregation)
    • Concepts
      • Access Control Lists
        • Working with ACLs
        • Sample ACL
        • Access Rights
        • Access Control Defaults
        • Access Control Identifier (ACI)
        • Negative Rights
        • Calculating a Users’ Rights
      • Login Authentication
        • Anonymous Login
        • Plaintext Authentication
        • Kerberos Logins
        • Shared Secrets Logins
      • Quotas
        • Working with Quotas
        • Monitor and Repair
        • Supported Quota Types
        • Quota Roots
        • Controlling Quota Behavior
        • Mail Delivery Behavior
        • Quota Warnings Upon Select When User Has d Rights
        • Quotas and Partitions
      • New Mail Notification
      • Partitions
        • Specifying Partitions with “create”
        • Changing Partitions with “rename”
      • News
      • POP3 Server
      • The syslog facility
      • Mail Directory Recovery
        • Reconstructing Mailbox Directories
        • Reconstructing the Mailboxes File
        • Reconstructing Quota Roots
        • Removing Quota Roots
        • Subscriptions
      • Configuration Directory
        • Log Directory
        • Proc Directory
      • Message Delivery
        • Local Mail Transfer Protocol (lmtp)
        • Single Instance Store
        • Duplicate Delivery Suppression
      • Sieve, a Mail Filtering Language
      • Cyrus Murder, the IMAP Aggregator
  • Setup
    • Compiling
      • Setting up dependencies
        • Required Build Dependencies
        • Build dependencies for additional functionality
      • Compile Cyrus
        • Default build: mail only
        • Optional dependencies
        • Compile
        • Check
    • Installing Cyrus
      • Install Cyrus
      • Optional Components
        • HTTP modules
        • Virus Scanner
      • Setting up syslog
      • Create Cyrus environment
        • Set up the cyrus:mail user and group
        • Authentication with SASL
        • Mail delivery from your MTA
        • Protocol ports
        • Cyrus config files
        • Optional: Setting up TLS certificates
        • Prepare ephemeral (run-time) storage directories
      • Launch Cyrus
      • Send a test email
      • Checking CardDAV and CalDAV
      • Troubleshooting
    • Upgrading to 3.6
      • 1. Preparation
        • Versions to upgrade from
        • Installation from tarball
        • Storage changes
        • How are you planning on upgrading?
        • Do What As Who?
      • 2. Install new 3.6 Cyrus
      • 3. Shut down existing Cyrus
      • 4. Backup and Copy existing data
      • 5. Copy config files and update
      • 6. Upgrade specific items
      • 7. Start new 3.6 Cyrus and verify
      • 8. Reconstruct databases and cache
      • 9. Do you want any new features?
      • 10. Upgrade complete
      • Special note for Murder configurations
    • Configuration Guide
      • Deployment Scenarios
        • Single Server Deployments
        • Multi Server Deployments
      • Cyrus Murder: Server aggregation
        • The Discrete Murder
        • The Unified Murder
        • The Shared Murder
      • Cyrus Replication
      • Hosted Environments
      • Databases
        • Overview
        • File list
        • Storage types
      • Mailbox Creation Distribution
        • Selection Mode
        • Special cases
        • Partitions Exclusion
        • Partitions Usage Data Reset
        • Mailbox Creation Distribution Through murder frontend
        • Backends Exclusion
        • Backends Usage Data Reset
      • Known Protocol Limitations
        • POP3 and Mailbox Locking
        • Cyrus IMAP POP3 Implementation
      • Authentication and Authorization
        • Client Authentication
        • Users and Mailboxes
      • Performance Recommendations
        • Databases on Temporary Filesystems
        • Certificates
      • Storage Considerations
        • General Notes on Storage
        • Redundancy
        • Availability
        • Performance
        • Scalability
        • Capacity
        • Cost
      • Supported Platforms and System Requirements
        • Building Cyrus IMAP
        • Required Software Components
        • Recommended Software Components
        • Recommended Software Components Enabled by Default
  • Operations
    • Man pages
      • (5) Configuration Files
        • cyrus.conf
        • imapd.conf
        • krb.equiv
      • (8) System Commands
        • arbitron
        • backupd
        • chk_cyrus
        • ctl_backups
        • ctl_conversationsdb
        • ctl_cyrusdb
        • ctl_deliver
        • ctl_mboxlist
        • ctl_zoneinfo
        • cvt_cyrusdb
        • cvt_xlist_specialuse
        • cyr_backup
        • cyr_buildinfo
        • cyr_dbtool
        • cyr_deny
        • cyr_df
        • cyr_expire
        • cyr_info
        • cyr_ls
        • cyr_synclog
        • cyr_userseen
        • cyr_virusscan
        • cyradm
        • cyrdump
        • deliver
        • fetchnews
        • fud
        • httpd
        • idled
        • imapd
        • ipurge
        • lmtpd
        • lmtpproxyd
        • masssievec
        • master
        • mbexamine
        • mbpath
        • mbtool
        • mkimap
        • mknewsgroups
        • mupdate
        • nntpd
        • notifyd
        • pop3d
        • pop3proxyd
        • promstatsd
        • proxyd
        • ptdump
        • ptexpire
        • ptloader
        • quota
        • reconstruct
        • rehash
        • relocate_by_id
        • restore
        • sievec
        • sieved
        • smmapd
        • squatter
        • sync_client
        • sync_reset
        • sync_server
        • timsieved
        • tls_prune
        • translatesieve
        • unexpunge
      • (1) User Commands
        • arbitronsort.pl
        • dav_reconstruct
        • httptest
        • imtest
        • installsieve
        • lmtptest
        • mupdatetest
        • nntptest
        • pop3test
        • sieveshell
        • sivtest
        • smtptest
        • synctest
    • Administrator Guide
      • Architecture
        • System Architecture
      • Management
        • File & Directory Locations
        • Ports and Sockets
        • Access Control
        • Quotas
        • Cyrus Sieve
        • Cyrus Backups
        • Cyrus NNTP
        • Cyrus Prot Layer
        • Standard Operating Procedures
        • Cyrus Event Source
        • Monitoring
        • Mailbox Distribution
        • Cyrus Murder
        • HOWTO: Using an NGINX IMAP Proxy
        • Tweaking Cyrus IMAP
    • Frequently Asked Questions
      • Features
        • Which database backend should I use for which databases?
        • Duplicate Delivery Suppression
      • Installation Problems
        • Compilation errors about kssl.h and krb5.h on Red Hat Linux/Fedora
        • Help! There must be an easier way to get all this going…
        • OpenSSL Version Mismatches
      • Common Feature Requests
        • Does the Cyrus Murder support High Availability configurations?
        • Can I configure pop3d to log amount and size of messages fetched by user?
        • How can I make CyrusSieve work with public shared folders?
        • Can I have subfolders not appear under INBOX?
      • Common Operational Questions
        • How do I view ACLs on a mailbox?
        • What annotations are available?
        • Is it safe to put <configdirectory>/proc and <configdirectory>/lock on a tmpfs filesystem?
        • How to enable core dumps
        • Why can I not delete a mailbox as an admin user?
        • When is What … Deleted, Expired, Expunged or Purged?
        • Why is deliver.db so large?
        • I have multiple imapd-SERVICES configured and experience occasional freezes when I try to log in!
        • How to run gdb on Cyrus components
        • Cyrus delivers claims that the mailbox does not exist
        • Why is mail being rejected with No Mailbox found due to MiXed CaSe incoming e-mail?
        • Can I use MySQL (or another SQL database) as the primary mail store?
        • Why do POP3 connections take so long, but once the connection is established all is well?
        • Why does reconstruct -m not work?
        • Shared File Systems GPFS for high availability
        • How to enable telemetry
        • The process count keeps growing!
        • “unable to join environment” error
        • Why does Cyrus set the MAIL FROM address of the sender of vacation responses to ‘<>’?
      • Common Interoperability Problems
        • Why does Cyrus reject 8-bit characters in the headers of my messages?
        • Why does Cyrus reject messages with “bare newlines”?
        • How do I get Cyrus Sieve to play nice with Exim?
        • Why does mail delivery go slow or hang sometimes?
  • Developers
    • We need your help
    • Contribute docs
      • Overview
      • Documentation Tools
      • Building the files
      • Submitting updates
        • Using GitHub pull requests
        • Patches through the mailing list
      • Special Tags
        • rfc
        • cyrusman
        • imap_current_stable_version
      • Conventions: Man Pages
        • Synopsis
        • Examples
    • Contribute code and tests
      • Getting Started
        • Development Process
        • Overview of Cyrus development environment
        • GitHub guide
        • Compiling
        • Installing Cyrus
        • Developer Test Environment
        • JMAP support
      • System files and Databases
        • Namespaces: a developer view
      • Resources
        • Developer Libraries
      • Releasing
        • Releasing Cyrus IMAP
        • Releasing new builds of ancient Cyrus IMAP versions
    • Cyrus.Works
      • About Cyrus Works
      • How it works
    • Cyrus Internals
      • Cyrus APIs
        • CyrusDB API
        • cyrusdb API
        • Index API
        • Mailbox API
      • Thoughts & Notes
        • Notes for backup implementation
        • Cyrus IMAP Server: Sieve Bytecode
        • Cyrus CalDAV Scheduling Flowchart
        • Enabling improved_mboxlist_sort
        • Cyrus IMAP Server: Notes
        • Cyrus IMAP Server: Prot Events
      • Guidance for Developers
        • Cyrus IMAP Server: Hacking
        • Cyrus IMAP Server: Internationalization
        • Cyrus IMAP Server: Locking
        • Cyrus IMAP Server: Mailbox File Formats
        • Cyrus IMAP Server: Namelocks
        • Cyrus IMAP Server: prot layer
        • Cyrus IMAP Server: Replication Examples
        • Cyrus IMAP Server: Replication Protocol v2.4+
        • Cyrus IMAP Server: Special Characters
        • Cyrus IMAP Server: var directory structure
    • Unit Tests
      • Unit Tests
        • Table of Contents
        • 1. Introduction
        • 2. What Is A Unit Test?
        • 3. Running The Tests
        • 3.6 Debugging A Test
        • 4. Adding Your Own Tests
        • 4.1 Where To Put Your Tests
        • 4.1 Adding A New Suite
        • 4.2 Adding A Test To A Suite
        • 4.3 Suite Setup And Teardown
  • Support/Community
    • Found a bug?
    • Mailing lists
    • Weekly meetings
    • About
      • What is Cyrus
        • What is Cyrus
        • What is IMAP?
        • IMAP Version 4 (IMAP4)
        • Mime
        • SMTP
      • Who Is Cyrus
        • Core Contributors
        • Individual contributors and past contributors
      • Cyrus Roadmap
        • High Level Roadmap
      • Cyrus History
      • Cyrus Bylaws
        • I. The Cyrus Governance Board
        • II. The Cyrus Core Developers Group
        • III. The Release Engineer
        • IV. The Cyrus Roadmap
        • V. Development Process
        • VI. Changes to the Bylaws

Cyrus SASL

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Cyrus IMAP
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Support/Community¶

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© Copyright 1993–2024, The Cyrus Team. Last updated on Jun 25 2021

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