Recent content by jim676

Hung - What does the header look like? Jim

ShackDaddy - No my ex-employee therory would be in the 'outbound' queue. The message was sent to the exchange server. The exchange server accepted the message. The server could not deliver the message to a mailbox so it must bounce it back to the sender. The sender is not accepting incoming...

Hung - I am no exchange expert but here is my answer. All <> tells you is that the address is hidden. The header will give you more detail. <> could be from Bcc or a message that the exchange server is sending back because the RCPT was not in the GAL. So lets assume an ex-employee signed up...

After making your Exchange server relay secure don't forget to consider if your distribution list should be accessible from the to the outside. When you finally get off of the open-relay lists it seems that the next thing that happens is junk email is sent to the distribution lists. To make...

AlexIT - Thanks for the reply. I may of misunderstood your post. I was interested in not sending a NDR to the sender. The notifications dialog box is used to specify when, and under what conditions, the Internet Mail Service should notify the administrator of NDRs. The sender still gets a...

Alex - &quot;...Exchange server is set to accept all messages to &quot;@myserver.mycorp.com&quot; and then delete those without valid mailboxes (without notification to admin box too)&quot; How are you doing this? So if I send a message to non_gal_address@yourdomain.com Exchange does not send...

Hung - One way is to telnet to relay-test.mail-abuse.org from your mail server. This will run 19 mail relay tests. If you are running NT4 capture the output to a file (I will provide more on this if needed). I got this from Caustic and it appears to be a good and complete test. A second...

ShackDaddy - Once your domain get on the open-relay lists my experences are that you'll see more people trying to hack in, trying to get into your VPN etc. Must be they see port 25 not secured and look to see what else might not be locked down. I would close the open relay ASAP. Jim.

I have also been fighting this beast. Here is my input. I am assuming you cannot relay mail thru your exchange server. See below. My mail from <> is actually from the exchange server returning an email that could not be delivered (employee left company or just a bogus address) but the return...