IBM TCP/IP Connectivity Utilities for i (5770-TC1)
SMTP support changes
Server modesIn IBM® i 7.2, SMTP supports three different server modes DIRTYPE(*SDD), DIRTYPE(*SMTP) and DIRTYPE(*SMTPMSF). DIRTYPE(*SDD) is the server mode used in prior releases. DIRTYPE(*SMTP) and DIRTYPE(*SMTPMSF) use different delivery and email storage methods than in prior releases. If you slip install to 7.2 from an earlier release, your SMTP mode will be DIRTYPE(*SDD) and you will not see any differences. If you receive a system that has 7.2 preloaded or you scratch install 7.2 on to your system, your SMTP server mode will be changed to *SMTP and you will need to run CHGSMTPA (DIRTYPE(*SDD)) if you want SMTP to function as it did in prior releases.
Upgrading IBM i SMTP Server to IBM i 7.2If you have upgraded your system from IBM i 7.1 or a previous release to IBM i 7.2, then use the Change SMTP Attributes (CHGSMTPA) command to check the values for the OVRRJTCNNL, ALWBARELF, and VFYID parameters and make sure they are still consistent with what they were before the upgrade. The upgrade might have reset them to the default values of OVRRJTCNNL(*YES), ALWBARELF(*NO), and VFYID(*YES). If the values have been changed, use the CHGSMTPA command to set them to the pre-install values.
For more information on new SMTP support visit the E-mail What's New topic here: http://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzair/rzairwhatnew
For the latest SMTP fix recommendations select SMTP from the 7.2 release pull down on this website: https://www-912.ibm.com/s_dir/slkbase.nsf/recommendedfixes