On 6/7/2012 06:17, Jeff Allison wrote: > Oops must have 2 accounts. > > But the answers the same it gets picked up by the main mailserver and forwarded > onto [log in to unmask] > You can certainly put aliases for all standard list-related addresses (8 per list) on your main mail server, but how will the main mail server handle an inbound delivery error message resulting from a passive probe? When LISTSERV sends a passive probe, the recipient (subscriber) address is encoded in the left-hand side of the envelope-sender address on the probe. If the probe is undeliverable, the inbound delivery error message will have the original recipient (subscriber) address encoded in the left-hand side of the envelope-recipient address. This technique ensures that LISTSERV can determine the original recipient (subscriber) address on the undeliverable probe, even if the probe was redirected to a different address before it bounced. There are a multitude of reasons why this can happen. As I see it, there are two ways to deal with this issue: * Create a new list-specific probe-style alias on the main mail server every time someone subscribes (or is added) to a list on your server, and every time an existing subscriber's address is updated by the subscriber, the list owner, or the site administrator. In addition to the 8 standard aliases for each list, you will need a seperate alias for every subscriber on every list. You will also need a process that removes individual aliases when they are no longer needed. * Continue to use host-specific addressing and let the mail server software on the list server handle the resolution of the left-hand side of the envelope recipient address. This will not require any new aliases on the main mail servers. -- Paul Russell retired email guy ############################ To unsubscribe from the LSTSRV-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa.exe?SUBED1=LSTSRV-L&A=1