Edit your mappings file in the msg_svr_base/config directory to enable a conversion channel for the source and destination channel of your choosing. To enable a conversion channel for all mail coming in from the Internet to your local users, add a section to your mappings file similar to the following:
CONVERSIONS IN-CHAN=tcp*;OUT-CHAN=ims-ms;CONVERT YES
Note that the IN and OUT channels depend on your configuration. If you are deploying on a relay MTA, you must modify the channels to fit your configuration. For example,
IN-CHAN=tcp*;OUT-CHAN=tcp*;CONVERT YES
Or, you could turn it on for all channels as follows:
IN-CHAN=*;OUT-CHAN=*;CONVERT YES
Create a conversions file in the msg_svr_base/config directory that is owned and readable by the current version of Messaging Server user, and that contains the following:
! in-channel=*; out-channel=*; in-type=text; in-subtype=*; parameter-copy-0=*; dparameter-copy-0=*; original-header-file=1; override-header-file=1; command="msg_svr_base /lib/arabicdetect.sh" !
Compile your MTA configuration with the following command:
msg_svr_base/sbin/imsimta cnbuild
Restart with the command:
msg_svr_base/sbin/imsimta restart