A fix is available
APAR status
Closed as new function.
Error description
New Function
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All users of the IBM Communications Server for z/OS Version * * 2 Releases 5 and z/OS 3.1 IP:CSSMTP * **************************************************************** * PROBLEM DESCRIPTION: * * New Function - SMTP AUTH support for CSSMTP * **************************************************************** * RECOMMENDATION: * * Apply PTF * **************************************************************** CSSMTP, the z/OS email client, is enhanced to support the SMTP AUTH command with username and password using the PLAIN and LOGIN authentication methods.
Problem conclusion
Temporary fix
Comments
CSSMTP, the z/OS email client, is enhanced to support the SMTP AUTH command with username and password using the PLAIN and LOGIN authentication methods. This provides a mechanism to allow mail servers to authenticate the originator of email. Note: The username and password used for SMTP AUTH are stored in a SAF LDAPBIND entity. RACF supports encrypting the LDAPBIND entity with AES-256 protection beginning in z/OS V2R5 with RACF APAR OA66458. To use SMTP AUTH support for CSSMTP, use the following references. - See the topic ?Steps for CSSMTP AUTH configuration? (https://www.ibm.com/docs/en/zos/3.1.0?topic=application-steps-c ssmtp-auth-configuration) in the z/OS Communications Server: IP Configuration Guide for the steps needed to configure CSSMTP to authenticate with the target server. - See the topic ?TargetServer statement? (https://www.ibm.com/docs/en/zos/3.1.0?topic=statements-targetse rver-statement) in the z/OS Communications Server: IP Configuration Reference for details on configuring the new AuthEntity parameter. - The EZARACF sample in the SEZAINST installation data set is updated to include a section on SMTP AUTH RACF Configuration. The following publications have been updated: - The topic ?Steps for CSSMTP AUTH configuration? (https://www.ibm.com/docs/en/zos/3.1.0?topic=application-steps-c ssmtp-auth-configuration) in the z/OS Communications Server: IP Configuration Guide is added to provide the steps needed to configure CSSMTP to authenticate with the target server. - The topic ?TargetServer statement? (https://www.ibm.com/docs/en/zos/3.1.0?topic=statements-targetse rver-statement) in the z/OS Communications Server: IP Configuration Reference is updated to provide details on configuring the new AuthEntity parameter. - The topic ?MODIFY command: Communications Server SMTP application (CSSMTP)? (https://www.ibm.com/docs/en/zos/3.1.0?topic=command-modify-comm unications-server-smtp-application-cssmtp) in the z/OS Communications Server: IP System Administrator's Commands is updated to show the new AUTHENTITY field in the MODIFY CSSMTP,DISPLAY,CONFIG report and the new AUTH STATE field in the MODIFY CSSMTP,DISPLAY,TARGETS report. - The topic ?Resolving mail problems related to SMTP Auth? (https://www.ibm.com/docs/en/zos/3.1.0?topic=problems-resolving- mail-related-smtp-auth) in the z/OS Communications Server: IP Diagnosis Guide is added to provide information on diagnosing problems related to CSSMTP?s support of SMTP AUTH. - The topic ?CSSMTP configuration record (CONFIG subtype 48)? (https://www.ibm.com/docs/en/zos/3.1.0?topic=records-cssmtp-conf iguration-record-config-subtype-48) in the z/OS Communications Server: IP Programmer's Guide and Reference is updated with new fields for the SMF 119 subtype 48 record. New fields defined include SMF119ML_CF_RptSysoutCls and SMF119ML_CF_MailbxCmptblty. New data added to configuration data section includes the ReportMailFrom setting and the AuthEntity setting for each target server. - The topic ?SMF type 1154, subtype 4 ? CSSMTP client compliance evidence record? (https://www.ibm.com/docs/en/zos/3.1.0?topic=t1sr-smf-type-1154- subtype-4-cssmtp-client-compliance-evidence-record) in the z/OS Communications Server: IP Programmer's Guide and Reference is updated with the new field, SMF1154_4_MLTS_Auth, for the SMF 1154 subtype 4 record. - The topic ?SMTP AUTH support for CSSMTP? (https://www.ibm.com/docs/en/zos/3.1.0?topic=security-smtp-auth- support-cssmtp)in the z/OS Communications Server: New Function Summary is added.
APAR Information
APAR number
PH61015
Reported component name
TCP/IP MVS
Reported component ID
5655HAL00
Reported release
250
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
YesSpecatt / New Function / Xsystem
Submitted date
2024-04-22
Closed date
2025-04-07
Last modified date
2025-05-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UO02744 UO02745
Modules/Macros
EZAMLUXT EZAMLLRT EZAMLCFP EZAMLUTL EZATMAIL EZAMLCKP EZASMF EZAMLJSP EZAMLUDV EZA482 EZAMLSSI EZAMLEML EZAMLLOG EZAMLCON EZAMLMSG EZAMLJES EZASMF77 EZAMLSMT EZARACF EZAMLCAT EZAMLHCK EZASM482 EZAMLSSR EZAMLJSU EZAMLSMF EZAMLERT EZAMLCFM EZAMLCFG EZAMLMN EZAMLERR EZAMLRES EZAMLCNF
Fix information
Fixed component name
TCP/IP MVS
Fixed component ID
5655HAL00
Applicable component levels
Fix is available
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Document Information
Modified date:
05 May 2025