Postfix 3.8
Postfix 3.8
Third-party support for the Postfix 3.8: 24/7 engineers manage issues, remediate vulnerabilities, and help you maintain compliance — independent of the vendor contract.
24/7 engineers own your Postfix 3.8 incidents end to end.
Mitigation and patch-around guidance when the vendor no longer ships fixes.
Controls evidence and documentation that keep auditors satisfied.
Specifications
- product
- postfix
- release
- 3.8
- product Label
- Postfix
- release Label
- 3.8
- codename
- lts
- latest Version
- 3.8.20
- release Date
- 2023-04-17
- maintained
- true
- source Url
- https://endoflife.date/postfix
OEM vs. 3rd Party Support
See how third-party support compares to the vendor contract for Postfix 3.8 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.
| Feature | OEM Support | 3rd Party Support |
|---|---|---|
| Post-EOSL Support | ||
| Break/Fix Support | Until EOSL | |
| 24/7 Monitoring | ||
| Vulnerability Scanning & Remediation | ||
| Managed Operations | ||
| Procedure & Configuration Review | ||
| Compliance & Audit Documentation | Limited | |
| Discounted Migration to Other Platforms |
Why Choose 3rd Party Support for Postfix 3.8?
Vulnerability Remediation
Scanning, mitigation and patch-around guidance for Postfix 3.8 when the vendor no longer ships fixes.
Compliance Maintenance
Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.
24/7 Expert Support
Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.
Postfix 3.8 Support: Frequently Asked Questions
Is the Postfix 3.8 still supported?
Yes. The Postfix 3.8 is currently supported by Postfix, and third-party support is available as an alternative — issue management, vulnerability remediation, and compliance help independent of the vendor contract.
How much does third-party support for the Postfix 3.8 cost?
Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location — request a quote and we respond within 24 hours.
Known Vulnerabilities Affecting Postfix 3.8
2 published CVEs affect the Postfix 3.8. Our 24/7 engineers help you assess exposure, prioritize fixes and apply available patches.
| CVE | Severity | CVSS | Published | Summary |
|---|---|---|---|---|
| CVE-2023-51764 | MEDIUM | 5.3 | Dec 24, 2023 | Postfix through 3.8.5 allows SMTP smuggling unless configured with smtpd_data_restrictions=reject_unauth_pipelining and smtpd_discard_ehlo_keywords=chunking (or certain other options that exist in recent versions). Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Postfix supports <LF>.<CR><LF> but some other popular e-mail servers do not. To prevent attack va |
| CVE-2026-43964 | LOW | 3.7 | May 4, 2026 | Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number. |