Comprehensive list of external resources for Postfix MTA.
| Resource |
URL |
Description |
| Official Website |
http://www.postfix.org/ |
Project homepage |
| Documentation |
http://www.postfix.org/documentation.html |
Complete documentation |
| Download |
http://www.postfix.org/download.html |
Source code downloads |
| Announcements |
http://www.postfix.org/announcements.html |
Release announcements |
| FAQ |
http://www.postfix.org/FAQ.html |
Frequently asked questions |
| Repository |
URL |
Description |
| GitHub Mirror |
https://github.com/vdukhovni/postfix |
Unofficial GitHub mirror |
| Official FTP |
ftp://ftp.porcupine.org/mirrors/postfix-release/ |
Official source |
| Git Repository |
git://postfix.org/postfix.git |
Official Git repository |
| Document |
URL |
Purpose |
| Basic Configuration |
http://www.postfix.org/BASIC_CONFIGURATION_README.html |
Basic setup guide |
| Standard Configuration |
http://www.postfix.org/STANDARD_CONFIGURATION_README.html |
Standard setup |
| SASL Authentication |
http://www.postfix.org/SASL_README.html |
SASL setup |
| TLS Encryption |
http://www.postfix.org/TLS_README.html |
TLS/SSL configuration |
| Virtual Domains |
http://www.postfix.org/VIRTUAL_README.html |
Virtual domain setup |
| Content Filter |
http://www.postfix.org/CONTENT_FILTER_README.html |
Content filtering |
| Page |
Description |
| postfix(1) |
Main command |
| postconf(1) |
Configuration parameters |
| postfix(5) |
Configuration file format |
| sendmail(1) |
Sendmail compatibility |
| List |
URL |
Purpose |
| postfix-users |
postfix-users@postfix.org |
User support |
| postfix-announce |
postfix-announce@postfix.org |
Announcements only |
| postfix-dev |
postfix-dev@postfix.org |
Development discussion |
| Platform |
URL |
Description |
| Server Fault |
https://serverfault.com/questions/tagged/postfix |
Q&A for professionals |
| Stack Overflow |
https://stackoverflow.com/questions/tagged/postfix |
Programming questions |
| Unix & Linux SE |
https://unix.stackexchange.com/questions/tagged/postfix |
Unix/Linux questions |
| Reddit r/sysadmin |
https://reddit.com/r/sysadmin |
System administration |
| Channel |
Network |
Purpose |
| #postfix |
Libera.Chat |
User support |
| #postfix |
OFTC |
Alternative channel |
| Resource |
Type |
Description |
| Postfix SMTP Authentication |
Tutorial |
SMTP AUTH configuration |
| Postfix Virtual Mailbox |
Tutorial |
Virtual mailbox setup |
| Postfix + Dovecot |
Tutorial |
Complete mail server |
| Postfix + SpamAssassin |
Tutorial |
Spam filtering setup |
| Book |
Author |
Year |
| “Postfix: The Definitive Guide” |
Kyle D. Dent |
2003 |
| “The Book of Postfix” |
Ralf Hildebrandt, Patrick Koetter |
2005 |
| Platform |
Search Term |
Content |
| YouTube |
“Postfix tutorial” |
Installation guides |
| YouTube |
“Postfix mail server” |
Configuration videos |
| Vimeo |
“Postfix MTA” |
Professional tutorials |
| Project |
URL |
Integration |
| SpamAssassin |
https://spamassassin.apache.org/ |
Content filtering |
| Rspamd |
https://rspamd.com/ |
Modern spam filter |
| Amavis |
https://www.amavis.org/ |
Content checker |
| ClamAV |
https://www.clamav.net/ |
Antivirus |
| Project |
URL |
Purpose |
| Cyrus SASL |
https://www.cyrusimap.org/sasl/ |
Authentication library |
| Dovecot |
https://www.dovecot.org/ |
IMAP + SASL auth |
| Tool |
URL |
Description |
| PostfixAdmin |
https://postfixadmin.github.io/ |
Web admin panel |
| Virtualmin |
https://www.virtualmin.com/ |
Hosting control panel |
| ISPConfig |
https://www.ispconfig.org/ |
Hosting control panel |
| Tool |
URL |
Purpose |
| MXToolbox |
https://mxtoolbox.com/ |
DNS and mail diagnostics |
| Mail-Tester |
https://www.mail-tester.com/ |
Test spam score |
| Google Admin Toolbox |
https://toolbox.googleapps.com/ |
DNS and email tests |
| Internet.nl |
https://internet.nl/ |
Modern internet standards |
| Tool |
URL |
Purpose |
| DNSViz |
https://dnsviz.net/ |
DNS visualization |
| IntoDNS |
https://intodns.com/ |
DNS health check |
| Source |
URL |
Description |
| Postfix Security |
http://www.postfix.org/ |
Security announcements |
| CVE Database |
https://cve.mitre.org/ |
Vulnerability database |
| NVD |
https://nvd.nist.gov/ |
National Vulnerability Database |
| Resource |
Description |
| CIS Benchmarks |
Security configuration benchmarks |
| Postfix TLS Best Practices |
Encryption configuration guide |
| Distribution |
Package |
Link |
| Debian |
postfix |
https://packages.debian.org/postfix |
| Ubuntu |
postfix |
https://packages.ubuntu.com/postfix |
| RHEL/CentOS |
postfix |
https://access.redhat.com/ |
| Fedora |
postfix |
https://src.fedoraproject.org/rpms/postfix |
| openSUSE |
postfix |
https://software.opensuse.org/package/postfix |
| Arch Linux |
postfix |
https://archlinux.org/packages/extra/x86_64/postfix/ |
| Distribution |
Package |
Link |
| FreeBSD |
mail/postfix |
https://www.freshports.org/mail/postfix/ |
| OpenBSD |
mail/postfix |
https://openports.se/mail/postfix |
| NetBSD |
mail/postfix |
https://pkgsrc.se/mail/postfix |
¶ Comparison Articles
| Article |
Source |
Year |
| “Postfix vs Sendmail” |
Various tech blogs |
2025-2026 |
| “Postfix vs Exim” |
Linux magazines |
2025-2026 |
| “Best Linux MTAs” |
Tech review sites |
2025-2026 |
| Platform |
URL |
| AlternativeTo |
https://alternativeto.net/software/postfix/ |
| Slant |
https://www.slant.co/topics/1439/~postfix |
| Provider |
Notes |
| Hetzner |
Allows SMTP, good value |
| DigitalOcean |
Port 25 may require request |
| Linode |
SMTP allowed with verification |
| Vultr |
Port 25 unblocked on request |
| OVH |
DDoS protection, SMTP allowed |
Note: Always verify SMTP policy before deploying mail servers.
| Resource |
Description |
| Postfix Release Archive |
All historical releases |
| Wayback Machine |
Archived website versions |
| Version |
Documentation |
| Postfix 2.x |
Archived docs |
| Postfix 1.x |
Historical docs |
| Area |
How |
| Bug Reports |
Email postfix-users@postfix.org |
| Patches |
Submit to development mailing list |
| Documentation |
Send corrections to maintainers |
| Testing |
Test snapshot releases |
| Resource |
Description |
| Git Repository |
git://postfix.org/postfix.git |
| Snapshot Builds |
http://www.postfix.org/snapshots/ |
| Component |
License |
| Postfix (pre-3.2.5) |
IBM Public License 1.0 |
| Postfix (3.2.5+) |
IBM Public License 1.0 OR Eclipse Public License 2.0 |
| Resource |
URL |
| IPL 1.0 |
https://opensource.org/licenses/IPL-1.0 |
| EPL 2.0 |
https://opensource.org/licenses/EPL-2.0 |
| Purpose |
Contact |
| General Inquiries |
postfix-users@postfix.org |
| Security Issues |
See website for security contact |
| Development |
postfix-dev@postfix.org |
See Also:
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