Bug 2134789

Summary: [RFE] SRV lookup support while performing SMTP submissions in Postfix as per RFC6186 #section-3.1
Product: Red Hat Enterprise Linux 9 Reporter: Joe Orton <jorton>
Component: postfixAssignee: Tomas Korbar <tkorbar>
Status: CLOSED ERRATA QA Contact: František Hrdina <fhrdina>
Severity: unspecified Docs Contact: Šárka Jana <sjanderk>
Priority: unspecified    
Version: 9.0CC: fhrdina, psklenar, sjanderk
Target Milestone: rcKeywords: AutoVerified, FutureFeature, TestCaseProvided, Triaged
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: postfix-3.5.9-21.el9 Doc Type: Enhancement
Doc Text:
.Postfix now supports SRV lookups With this enhancement, you can now use the Postfix DNS service records resolution (SRV) to automatically configure mail clients and balance load of servers. Additionally, you can prevent mail delivery disruptions caused by temporary DNS issues or misconfigured SRV records by using the following SRV-related options in your Postfix configuration: `use_srv_lookup` :: You can enable discovery for the specified service by using DNS SRV records. `allow_srv_lookup_fallback` :: You can use a cascading approach to locating a service. `ignore_srv_lookup_error` :: You can ensure that the service discovery remains functional even if SRV records are not available or encounter errors.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2023-11-07 08:30:23 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 178010    
Bug Blocks:    

Description Joe Orton 2022-10-14 10:18:35 UTC 
This bug was initially created as a copy of Bug #1787010

I am copying this bug because: 

Tracking this for RHEL 9.2 as well.


Description of problem:

Add the ability to set postfix to find its SMTP Sumbission hosts in accordance with RFC6186#section-3.1

Version-Release number of selected component (if applicable):

Postfix

How reproducible:

Always


Actual results:

While sending mails , postfix is not performing SRV record Lookup.

Expected results:

Postfix must perform SRV lookups.

Additional info:

https://tools.ietf.org/html/rfc6186#section-3
Comment 15 errata-xmlrpc 2023-11-07 08:30:23 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (postfix bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:6397