Additional ims-ms channels

It is possible to define additional  channels, if special needs  would make additional such channels useful. Each such channel should have a name of the form    ,  and its own unique  official channel host name. Note that due to the intimate connection between rewriting, alias expansion, and delivery options for   channels, getting additional   channels used by the MTA  typically requires modification to other configuration choices also. For instance, one approach would be as follows.

In this example a new channel  will have a  shorter retention policy  for holding onto messages that could not be delivered,  while a new channel   will have a  faster delivery retry rate,  and will run in its own  Job Controller processing pool so as not to  compete with the "regular"   channel and the    channel.

First define additional  channels such as: ims-ms_shortterm defragment subdirs 20 notices 1 7 14 \ backoff "pt5m" "pt10m" "pt30m" "pt1h" "pt2h" "pt4h" \ maxjobs 2 pool IMS_POOL fileinto $U+$S@$D ims-ms-short-daemon ims-ms_vip defragment subdirs 20 notices 1 7 14 21 28 \ backoff "pt5m" "pt5m" "pt10m" "pt10m" "pt30m" "pt1h" "pt2h" \ maxjobs 2 pool IMS_VIP_POOL fileinto $U+$S@$D ims-ms-vip-daemon Next tell the MTA about two new delivery option values,   and , defining them in  the MTA option   : DELIVERY_OPTIONS=&#x2a;mailbox=$M%$\$2I$_+$2S@ims-ms-daemon,\ &members=&#x2a;,\ &#x2a;mailboxshort=$M%$\$2I$_+$2S@ims-ms-short-daemon,\ &#x2a;vipmailbox=$M%$\$2I$_+$2S@ims-ms-vip-daemon,\ &#x2a;native=$M@native-daemon,\ /hold=@hold-daemon:$A,\ &#x2a;unix=$M@native-daemon,\ &file=+$F@native-daemon,\ &@members_offline=&#x2a;,\ program=$M%$P@pipe-daemon,\ #forward=&#x2a;&#x2a;,\ &#x2a;^!autoreply=$M+$D@bitbucket (In the above setting, note the use of a leading space before each continued line of the option value to avoid causing interpretation of  characters such as   as a comment character. Note also  that the site-specific definitions for   and    are added after the usual first two definitions  for   and   respectively, as  these first two value clauses in the    definition have  special meaning as far as being defaults.)

Finally, set appropriate users&#x27; LDAP entries with a value for the   attribute (or more precisely whatever  attribute is named by the     MTA option) of    or   as desired.

See also:
 * official_host_name Option
 * notices Option
 * backoff Option
 * pool Option
 * delivery_options MTA Option
 * ldap_delivery_option MTA Option
 * ims-ms channel configuration