Sympa : Sympa is an open-source mailing list management (MLM) software.
This technology is used by 0% of websites in the Webmail category. The most popular industry vertical is Technology & Computing, with Computing being the top subcategory.
What is Sympa?
Sympa is an open-source mailing list management software designed for large-scale, enterprise-grade email list operations. Developed initially by CRU (Comité Réseau des Universités) in France, Sympa handles everything from simple newsletter distribution to complex mailing list workflows with thousands of subscribers.
The name "Sympa" comes from "Système de Multi-Postage Automatique" (Automatic Multi-Posting System). It provides sophisticated features including list moderation, subscription management, archiving, DKIM signing, and integration with LDAP directories for subscriber management.
Sympa is particularly popular in academic institutions, research organizations, and large enterprises where managing hundreds of mailing lists with complex membership rules is required. It supports multiple virtual domains and provides a web interface for both administrators and subscribers.
Industry Vertical Distribution
Technologies Frequently Used with Sympa
| Technology | Co-usage Rate | Website |
|---|---|---|
| Python | 100% | http://python.org |
| Perl | 100% | http://perl.org |
| PHP | 100% | http://php.net |
| Debian | 100% | https://debian.org |
| mod_ssl | 100% | http://modssl.org |
| mod_python | 100% | http://www.modpython.org |
| mod_perl | 100% | http://perl.apache.org |
| mod_fastcgi | 100% | http://www.fastcgi.com/mod_fastcgi/docs/mod_fastcgi.html |
| OpenSSL | 100% | http://openssl.org |
| Apache | 100% | http://apache.org |
Sympa Features
List Management: Unlimited lists. Virtual domains. Nested lists. Dynamic lists from LDAP/SQL. List families.
Moderation: Message moderation. Subscription moderation. Editors and moderators. Workflow rules. Spam filtering.
Archives: Web-based archives. Full-text search. Attachment handling. Access control. Archive export.
Authentication: LDAP integration. CAS support. Shibboleth. Custom auth. SSO integration.
Security: DKIM signing. ARC support. S/MIME encryption. Virus scanning. Bounce management.
Templates: Customizable templates. Multi-language support. HTML messages. MIME handling. Footer/header injection.
AI-Powered Technology Recommendations
Our AI recommender engine, trained on 100 million data points, suggests these technologies for websites using Sympa:
| Technology | AI Score | Website |
|---|---|---|
| Debian | 0.03 | https://debian.org |
| GTranslate | 0.03 | https://gtranslate.io |
| Python | 0.03 | http://python.org |
| wpBakery | 0.02 | https://wpbakery.com |
| Yii | 0.02 | https://www.yiiframework.com |
| Craft CMS | 0.02 | https://craftcms.com |
| mod_fastcgi | 0.02 | http://www.fastcgi.com/mod_fastcgi/docs/mod_fastcgi.html |
| mod_wsgi | 0.02 | https://code.google.com/p/modwsgi |
| Django | 0.02 | https://djangoproject.com |
| AppNexus | 0.02 | http://appnexus.com |
IAB Tier 1 Vertical Distribution
Relative Usage by Industry
Market Distribution Comparison
Sympa Use Cases
Universities: Department mailing lists. Course announcements. Faculty communications. Student organizations. Alumni lists.
Research Institutions: Project collaboration. Working groups. Conference announcements. Paper discussions. Peer review.
Government: Agency communications. Public announcements. Inter-departmental lists. Citizen notifications.
Large Enterprises: Company-wide announcements. Department lists. Project teams. Regional communications.
Non-Profits: Member communications. Volunteer coordination. Newsletter distribution. Event announcements.
Technical Communities: Open source projects. Standards working groups. Developer mailing lists. Support lists.
IAB Tier 2 Subcategory Distribution
Top Websites Using Sympa
| Website | IAB Category | Subcategory | OpenRank |
|---|---|---|---|
| neighborhoods.net | Technology & Computing | Computing | 1.9 |
Sympa Code Examples
List Configuration
# config file for list: [email protected]
subject Project Development Discussion
owner
email [email protected]
profile privileged
editor
email [email protected]
subscribe auth
send private
visibility noconceal
# Data sources
include_ldap_query
host ldap.example.org
suffix ou=People,dc=example,dc=org
filter (&(objectClass=person)(department=engineering))
attrs mail
select all
# Message handling
max_size 10485760
msg_topic_keywords_apply_on subject
# DKIM
dkim_feature on
dkim_signature_apply_on anyRobot Configuration
# /etc/sympa/sympa.conf
domain lists.example.org
listmaster [email protected]
wwsympa_url https://lists.example.org/sympa
# Database
db_type mysql
db_host localhost
db_name sympa
db_user sympa
# Mail handling
sendmail /usr/sbin/sendmail
max_size 10485760
dkim_feature on
dkim_private_key_path /etc/sympa/dkim/private.keyUsage by Domain Popularity (Top 1M)
Usage by Domain Age
The average age of websites using Sympa is 26 years. The average OpenRank (measure of backlink strength) is 1.9.
Sympa Benefits
Scalability: Handles millions of subscribers. Thousands of lists. High-volume delivery. Enterprise performance.
Flexibility: Dynamic membership. Custom authorization. Complex scenarios. Programmable rules.
Integration: LDAP directories. SQL databases. SSO systems. Existing infrastructure.
Compliance: GDPR tools. Audit trails. Data export. Privacy controls. Consent management.
Open Source: GPL license. Active development. Community support. No vendor lock-in.
Standards: RFC compliant. DKIM, ARC, DMARC. Proper bounce handling. Deliverability focused.
Emerging Websites Using Sympa
| Website | IAB Category | Subcategory | OpenRank |
|---|---|---|---|
| neighborhoods.net | Technology & Computing | Computing | 1.9 |
