We're having a similar problem with an IMail server running 100+ domains. Whenever we enable SMTP Authentication and try to use it, it crashes the SMTP service. You can go into the System Event Log and see the error. IMail monitor will eventually restart it, but it will keep crashing whenever someone tries to authenticate again. Disabling SMTP Auth resolves the crashing issue, but this is not an option because roaming users aren't able to authenticate. Is this the same thing happening to you? We have another server with just a few domains where SMTP Auth works fine with no problems. I can't get through to IPSwitch, either by email or phone, to get an answer. Let me know if you come up with a solution. Steven Plautz System Administrator of ISP Operations Picus - Sybercom [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of jose Sent: Monday, October 23, 2000 2:06 PM To: [EMAIL PROTECTED] Subject: [IMail Forum] Problems with smtp auth Imail 6.0 - roaming users Hello we use to run our imail 6.0 server in a winnt 4.0 box. we unselected the "disable smtp auth reporting" and restricted relaying to anyone but our own class C ip addresses. Now we migrated the server to a new box running on windows 2000 but using the same imail 6.0 for nt (We dont have any patch installed after 6.0) When we try to use smtp auth (Using outlook 5.0 with smtp auth set), we get the following error: The connection to the server has failed. Account: 'topartmultimedia', Server: 'topartmultimedia.com', Protocol: SMTP, Port: 25, Secure(SSL): No, Socket Error: 10061, Error Number: 0x800CCC0E And when we check the "disable smtp auth reporting", we dont get this error but we get the 550 Relaying denied message. We have 100 sites and we are conducting tests from an ip address not our own in order to try to simulate a roaming user which is our main objective. Anybody knows what the above error means and why it is not letting us authenticate via smtp ? TIA Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/