On Sun April 17 2005 10:12 am, Paul Howarth wrote: > > The "MX host" is the mail server (and there may be several) that handles > incoming mail from the Internet for the domain you are sending the mail > to. Most servers will refuse mail from unresolvable domains because it's > impossible to send a reply or bounce back. > Hope this is not straying too far off subject, but you raise some thoughts. By implication, I guess the fact that my ISP's mail servers are accepting my forwarded sendmails is an indication that their mail servers are mal-configured? I'm doing a fairly simple thing - I run a script every five minutes; it starts up sendmail; it then runs a little script called gotmail which goes out to my hotmail account and forwards, then deletes, all messages in that account; once the hotmail actions are complete, the last command is to stop sendmail. This generates a flood of chron-job mail messages to root which I alias to myself, then use the .forward to send to my regular email account where it's easy to filter and delete them automatically. Anyway, all this by saying that the messages appear to be coming from root@xxxxxxxxxxxxxxxxxxxxxxxx to my ISP's mail server, but that's not a registered domain, so no possibility of reverse look-up. So, I'm assuming that ISP's try to resolve addresses of mail that's coming in, and bounce unresolvable addresses, as a safety practice? Do I have this all right? And if they're not doing this, what does it mean if they are permitting mail that's coming from unresolvable addresses.... -- Claude Jones Bluemont, VA, USA