Another option: if you normally use a IPMAILERADDRESS ALL line that points to your enterprise mail gateway system, change it to point to some host that doesn't run SMTP. If the IBM SMTP can't connect to port 25 on the IPMAILERADDRESS host, it will queue the mail until it can (or you put it back the way it was).
3rd option: if on VM, use the homebrew "SMTP Lite" In Melinda Varian's Piping the Internet paper. That will get you either spool files that you can transfer back to SMTP later, or disk files if you so choose (which can be punched to SMTP later if you are one of the authorized users in the SMTP config for such things). From: David Boyes Sent: Tuesday, May 24, 2011 10:57 PM To: IBMVM@LISTSERV.UARK.EDU Subject: RE: Short circuit SMTP Change the DNS servers in the stack pointed to by VM SMTP (the NSINTERADDR lines) to some IP address that does not have a DNS server running. SMTP will receive the messages, queue them, but not deliver anything because nothing can be resolved. This assumes you don't have a DNS lookup enabled for incoming traffic, but is very effective.
