Re: Short circuit SMTP
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.
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.
Re: Short circuit SMTP
On Tuesday, 05/24/2011 at 04:58 EDT, Michael Harding/Oakland/IBM@IBMUS wrote: > Oh (chagrined), I didn't understand what you were saying in your original > post. In that case I like Alan's solution. ...which suffers from the same issue. It protects only the batch SMTP (RDR) stuff, not the TCP connection. How you solve this problem depends entirely on what you want done with the e-mail. If you want to send it to oblivion, just use a PIPE TCPSERVER to suck it into a black hole. If you want to hang onto it for later delivery, then try changing IPMAILERADDRESS ALL to point to a non-existent host and update the RETRYAGE to some large number of days (default is 3). Don't forget to increase the size of SMTP's A-disk to hold all of that undelivered mail. But there is otherwise nothing in VM SMTP to get it to just "hold" incoming mail that is destined to be relayed to a remote host. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott
Re: Short circuit SMTP
Oh (chagrined), I didn't understand what you were saying in your original post. In that case I like Alan's solution. -- Mike Harding z/VM System Support mhard...@us.ibm.com mike.b.hard...@kp.org mikehard...@mindless.com (925) 926-3179 (w) (925) 323-2070 (c) IM: VMBearDad (AIM), mbhcpcvt (Y!) The IBM z/VM Operating System wrote on 05/24/2011 01:38:55 PM: > From: "Frank M. Ramaekers" > To: IBMVM@LISTSERV.UARK.EDU > Date: 05/24/2011 01:41 PM > Subject: Re: Short circuit SMTP > Sent by: The IBM z/VM Operating System > > Well, it doesn’t arrive in SMTP reader from z/VSE systems. The z/ > VSE systems contact the z/VM SMTP server via SMTP. > > > > Frank M. Ramaekers Jr. > > >
Re: Short circuit SMTP
Well, it doesn't arrive in SMTP reader from z/VSE systems. The z/VSE systems contact the z/VM SMTP server via SMTP. Frank M. Ramaekers Jr. From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf Of Michael Harding Sent: Tuesday, May 24, 2011 3:27 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Short circuit SMTP Sure, just leave the SMTP userid down. If you don't want to update your profile tcpip, issue a "hold smtp logon" from operator at system ipl time. Outgoing mail will pile up in its reader without going anywhere. -- Mike Harding z/VM System Support mhard...@us.ibm.com mike.b.hard...@kp.org mikehard...@mindless.com (925) 926-3179 (w) (925) 323-2070 (c) IM: VMBearDad (AIM), mbhcpcvt (Y!) The IBM z/VM Operating System wrote on 05/24/2011 12:59:51 PM: > From: "Frank M. Ramaekers" > To: IBMVM@listserv.uark.edu > Date: 05/24/2011 01:02 PM > Subject: Short circuit SMTP > Sent by: The IBM z/VM Operating System > > Is there a way to short-circuit SMTP so that it will receive the > outgoing mail, but not deliver it? > We have some z/VSEs that have the z/VM SMTP has the SMTP server. In > a DR situation, we don't want to have to jerk out all of the EMAIL > jobs or work around any email failures. > So, is there a way to configure the z/VM SMTP to accept the incoming > email requests, but just not do anything with them? > > TIA, > > > Frank M. Ramaekers Jr. > > > > Systems Programmer > > MCP, MCP+I, MCSE & RHCE > > > > American Income Life Insurance Co. > > Phone: (254)761-6649 > > > > 1200 Wooded Acres Dr. > > Fax: (254)741-5777 > > > > Waco, Texas 76701 > > > > [image removed] > > > > > _ This message > contains information which is privileged and confidential and is > solely for the use of the intended recipient. If you are not the > intended recipient, be aware that any review, disclosure, copying, > distribution, or use of the contents of this message is strictly > prohibited. If you have received this in error, please destroy it > immediately and notify us at privacy...@ailife.com. _ This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at privacy...@ailife.com.
Re: Short circuit SMTP
On Tuesday, 05/24/2011 at 04:00 EDT, "Frank M. Ramaekers" wrote: > Is there a way to short-circuit SMTP so that it will receive the outgoing mail, > but not deliver it? > > We have some z/VSEs that have the z/VM SMTP has the SMTP server. In a DR > situation, we don?t want to have to jerk out all of the EMAIL jobs or work > around any email failures. > > So, is there a way to configure the z/VM SMTP to accept the incoming email > requests, but just not do anything with them? Untested: RESTRICT TRANSFERto SOMEUSER * EndRESTRICT should cause all spooled SMTP BATCH files from any user to be given to SOMEUSER. You could say PURGE instead of TRANSFERto SOMEUSER if you wish. Alan Altmark z/VM and Linux on System z Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott
Re: Short circuit SMTP
Sure, just leave the SMTP userid down. If you don't want to update your profile tcpip, issue a "hold smtp logon" from operator at system ipl time. Outgoing mail will pile up in its reader without going anywhere. -- Mike Harding z/VM System Support mhard...@us.ibm.com mike.b.hard...@kp.org mikehard...@mindless.com (925) 926-3179 (w) (925) 323-2070 (c) IM: VMBearDad (AIM), mbhcpcvt (Y!) The IBM z/VM Operating System wrote on 05/24/2011 12:59:51 PM: > From: "Frank M. Ramaekers" > To: IBMVM@listserv.uark.edu > Date: 05/24/2011 01:02 PM > Subject: Short circuit SMTP > Sent by: The IBM z/VM Operating System > > Is there a way to short-circuit SMTP so that it will receive the > outgoing mail, but not deliver it? > We have some z/VSEs that have the z/VM SMTP has the SMTP server. In > a DR situation, we don’t want to have to jerk out all of the EMAIL > jobs or work around any email failures. > So, is there a way to configure the z/VM SMTP to accept the incoming > email requests, but just not do anything with them? > > TIA, > > > Frank M. Ramaekers Jr. > > > > Systems Programmer > > MCP, MCP+I, MCSE & RHCE > > > > American Income Life Insurance Co. > > Phone: (254)761-6649 > > > > 1200 Wooded Acres Dr. > > Fax: (254)741-5777 > > > > Waco, Texas 76701 > > > > [image removed] > > > > > _ This message > contains information which is privileged and confidential and is > solely for the use of the intended recipient. If you are not the > intended recipient, be aware that any review, disclosure, copying, > distribution, or use of the contents of this message is strictly > prohibited. If you have received this in error, please destroy it > immediately and notify us at privacy...@ailife.com.
Short circuit SMTP
Is there a way to short-circuit SMTP so that it will receive the outgoing mail, but not deliver it? We have some z/VSEs that have the z/VM SMTP has the SMTP server. In a DR situation, we don't want to have to jerk out all of the EMAIL jobs or work around any email failures. So, is there a way to configure the z/VM SMTP to accept the incoming email requests, but just not do anything with them? TIA, Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE & RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr. Fax: (254)741-5777 Waco, Texas 76701 _ This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at privacy...@ailife.com.
