Alias reprocess alias option

Deferred expansion alias option:  (string)
The  alias option is used to request deferred expansion of  the mailing list, where rather than expanding the mailing list "on  line", the message should instead be enqueued to the  reprocess channel;  the reprocess channel can then perform the mailing list  processing in a separate step. The   specification is currently ignored and should always be.

Use of this alias option defers much of the processing overhead of handling the message to the later step when the  reprocess channel runs,  rather than doing the processing as the message is initially accepted. This deferred processing can be especially helpful in cases such as incoming SMTP messages addressed to large mailing lists, where "on  line" delays could lead to connection time outs.

Use of this parameter as in: listname:      &#x3c;/pmdf/table/listname.dis, &#x5b;REPROCESS&#x5d; reprocess thus provides essentially identical functionality as defining a mailing list in two stages through the reprocess channel to obtain deferred  expansion (the mailing list addresses aren&#x27;t even expanded until the  reprocess channel runs) such as: listname:       listname-expand@reprocess listname-expand: &#x3c;/pmdf/table/listname.dis In legacy configuration, the analogous alias file named parameter is.

For aliases/lists defined in LDAP, see the  MTA option.

See also:
 * Alias options
 * Alias file named parameters
 * ldap_reprocess MTA Option
 * Process and reprocess channels