Docker Mailserver vs Nextcloud
A side-by-side comparison of two self-hosted apps from related categories
— licensing, setup difficulty, resource needs, and what each one
replaces.
Not the right match-up?
Compare Docker Mailserver with
choose an app… listmonk Mailspring Postal MailHog Mail-in-a-Box Stalwart Mail Server mailcow Mautic Mailpit Mailpile CryptPad Mailu Roundcube Himalaya SimpleLogin ONLYOFFICE Docs MailCatcher Maddy Mail Server Mox Mailtrain Haraka AnonAddy RainLoop imapsync smtp4dev NeoMutt Modoboa Collabora Online aerc OnlyOffice Community Server Dittofeed Rspamd Keila emailwiz SendPortal SOGo WildDuck Mailvelope iRedMail Cypht SnappyMail Forward Email Cuttlefish DebOps swaks parsedmarc Cozy PostfixAdmin Dovecot Nextcloud Groupware Apache James Nextcloud Mail chasquid Sup Betterbird imapfilter OpenTrashmail notmuch Sieve Editor meli phpList Exim alot alps LibreOffice Online Lieer Cyrus IMAP OfflineIMAP Larch OpenSMTPD Postfix ViMbAdmin Chatmail Mailman isync MailWhale Afterlogic WebMail Lite afew Apache SpamAssassin Sympa Simple NixOS Mailserver Calligra Suite EGroupware msmtp fdm Group-Office DragonFly Mail Agent Claws Mail Fetchmail HyperKitty piler Postorius Nullmailer getmail6 OpenDMARC OpenDKIM bogofilter Citadel Schleuder Dovecot Pigeonhole Tine DKIMpy Milter mpop Courier Mail Server Afterlogic DAV b1gMail Dovel EmailRelay Inboxen Sendmail Sendy SquirrelMail
Compare Nextcloud with
choose an app… Immich Syncthing LocalSend MinIO Rclone copyparty Puter PhotoPrism croc Spacedrive File Browser Restic SeaweedFS Cloudreve Ente Photos DeepFace Magic Wormhole Snapdrop gallery-dl Kubo (IPFS) Ceph transfer.sh Mail-in-a-Box ProjectSend alt: Vert.sh File converter Seafile Duplicati Filestash Stalwart Kopia Color Thief BorgBackup darktable SFTPGo PairDrop ShareDrop Dufs Thumbor qrcp Nextcloud All-in-One Velero FilePizza OctoPrint ownCloud LibrePhotos CryptPad miniserve FileBrowser Quantum Mailu bup Conduit File Sync Backrest Resilio Sync alternative Onionshare ONLYOFFICE Docs wger Photoview closet GoToSocial NoNo upspin imaginary Maddy Mail Server h5ai Tiny File Manager Send Google Photos Takeout Helper OpenCloud Mox WebDAV Server Go Duplicacy Unison Flying Carpet Papra CKAN SparkleShare elFinder Pingvin Share gocryptfs Kinto pgBackRest Syncthing Android Wrapper bitmagnet Nextcloud Desktop Sync slskd Updog Collabora Online Zipline OnlyOffice Community Server FileGator PicoShare RcloneView gohttpserver Gokapi LubeLogger Chibisafe Mazanoke Syncthing-Fork Directory Lister Peergos Palmr Reitti CryFS Pydio Cells Mainsail SOGo OpenCloud Files Enclosed git-annex ProjectSend Zenko CloudServer bittorrent-tracker Apaxy PsiTransfer Plik Firefox SyncStorage Nextcloud companion go-filecoin none WebDAV-Aria Syncany Sync-in HortusFox FreeFileSync Garage Linx Slink Sharry rmfakecloud Morphos server Picsur rsync.net alternative Stash NoDuplicate HomeHub Uguu rustypaste Nextcloud Groupware XBackBone Zen scanservjs Gossa Threema Web FileRise Twake Drive Pomf Readur Poznote Webtor LibreOffice Online QuickShare ownCloud Web DumbDrop Wingfit Local Content Share Cryptomator CLI 015 IFM mikochi Open Web Calendar ThinkDashboard Davros Calligra Suite goploader Lufi EGroupware Files Sharing Group-Office Filebin Tracim Kleeja Z-Push PrivyDrop Flare Nephele Citadel File Drop Cryptomator Hub hash-calendar ZeroNote Pydio Cells Sync Shifter Passky Client Pydio Cells Client elixire Tine Dropgate Server IPFS Podcasting Digirecord Feber FileRun GoSƐ Jirafeau LibreOffice pacebin Resilio Sync ResourceSpace Samba slcl Surfer Yetishare
✓ Quick verdict For most self-hosters, Nextcloud is the stronger starting point — it offers the larger community and ecosystem. Choose Docker Mailserver instead if this matters more to you: reproducible, version-controllable config.
Feature Docker Mailserver Nextcloud Category Mail Servers File Sync & Storage License MIT AGPL-3.0 Language Shell PHP Setup difficulty Medium Medium Min. RAM 2,048 MB 512 MB Deployment docker docker, bare-metal, snap GitHub stars ★ 18,682 ★ 36,362 First released 2015 2016 Replaces Google Workspace, Microsoft 365 Dropbox, Google Drive, Microsoft 365
Why pick each one
Choose Nextcloud if… Feature-rich and extensible Active development and large community Integrates calendar, contacts and office Nextcloud details
Frequently asked questions Is Docker Mailserver or Nextcloud better? Neither is universally better. Nextcloud has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Docker Mailserver and Nextcloud free and open-source? Yes. Docker Mailserver is licensed under MIT and Nextcloud under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Docker Mailserver and Nextcloud with Docker? Docker Mailserver: yes. Nextcloud: yes.