PI68291: CSSMTP CLIENT CANNOT CONNECT TO THE MAIL SERVER WHICH SUPPORTS HELO 16/10/12 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible in next release.

Error description

• Cannot establish the connection between CSSMTP and Target Server
  which does not support EHLO SMTP command.
  Following messages are seen:
  EZD1818I jobname UNABLE TO SEND TO TARGET SERVER ipaddress
  *BPXM023I (jobname) EZD1820E jobname NO TARGET SERVER IS CAPABLE
  OF RECEIVING MAIL AT THIS TIME
  Log also shows:
  500 Unknown command, 'EHLO'
  socket API call read failed: EDC8121I Connection reset.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users of the IBM Communications Server for z/OS Version  *
  * 2 Release 1 and Release 2 IP: CSSMTP                         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * CSSMTP fails to connect to mail servers that do not support  *
  * the EHLO command.                                            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply the PTF                                                *
  ****************************************************************
  CSSMTP sends a EHLO command to the mail server and receives a
  reply indicating that the server does not support EHLO. CSSMTP
  fails the connection and does not retry with a HELO command.
  

Problem conclusion

• CSSMTP is changed to retry with a HELO command when the mail
  server does not support the EHLO command.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI40801 UI40802

Modules/Macros

• EZAMLCON
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R220 PSY UI40802

     UP16/10/25 P F610 {

• R210 PSY UI40801

     UP16/10/25 P F610 {

Fix is available

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