SparkMail Server
0.4.1-0022The mail server: Postfix, Dovecot, Rspamd and ClamAV, configured from a DSM window.
Two native DSM packages: a full mail server for your NAS and the SparkMail client that opens right inside DSM. No Docker, no licences per user.
Features
Unlimited domains, mailboxes and aliases
Spam and virus filtering, DKIM, SPF, DMARC, DANE
Threat map, audit log, mail search across mailboxes
Moderation, disclaimers, auto BCC, quotas, IMAP migration
Installation
-
1
Add the package source
Package Center → Settings → Package Sources → Add: name SparkMail, location below. The packages appear under Community.
https://apps.ibcsc.be/synology -
2
Install SparkMail Server
Click Install. Package Center installs Perl from Synology first and refuses to install next to Synology MailPlus Server.
-
3
Activate it once
Over SSH as an administrator run the command below. It hands the mail ports and system services to the package.
sudo /var/packages/SparkMailServer/scripts/sparkmail-activate -
4
Publish DNS
In Domain → DNS records copy the MX, SPF, DKIM and DMARC records to your DNS host and open ports 25, 465, 587 and 993.
Questions and answers
Which NAS do I need?
Needs a Synology with an Intel or AMD processor (x86_64), DSM 7.2 or later and 2 GB of RAM — 4 GB with the antivirus on.
What if I cannot add a package source?
No access to Package Sources? The same SPK files can be installed with Manual Install; Package Center then lists the missing packages to install first.
How do I check the downloaded file?
In Terminal, run the command below and compare the result with the SHA-256 fingerprint on the right. If a single character differs, do not open the file and write to us.
shasum -a 256 ~/Downloads/SparkMailServer-0.4.1-0022-x86_64.spk
- Version
- 0.4.1-0022
- Developer
- IBCSC, Charleroi
- Interface languages
- Français, Nederlands, Deutsch, English, Русский, Español
- Compatibility
- DSM 7.2 or later
- Architecture
- x86_64
- Licence
- Free, no ads
- SHA-256 fingerprint
0ddcda1b67ae…5cc946
No threats found.Details…
File scanned by ClamAV (1.4.6, base 28166) on 28 October 2026; SHA-256 fingerprint computed on our server.