On 30 Mar 2007 12:37:13 -0700, ryanlsanders@xxxxxxxxx wrote:
2 HT servers in different AD sites, both. When they try to send to
each other, the queue manager gives this message. Both EX07, I can
ping and telnet on 25 to each from each and create messages from with
SMTP commands. Delivery to each other is not working.
Delivery Type:
SMTP Relay to Remote Active Directory Site
Primary Target IP address responded with "451 5.7.3 Cannot achieve
Exchange Server authentication."
Are you allowing Exch Server permissions and authentication on the
default receive connectors ?
.
sendmail client side smtp authentication problem ... sendmail client side smtp authentication problem... made and installed cf, restarted sendmail, ... # Resolve map (to check if a host exists in check_mail) ... (freebsd-questions)
Re: Outlook could not logon to the outgoing mail server - Exchange server ... In the Exchange System Manager go to the SMTP Protocol --> Default ... Based on my experience,I think The root cause is your smtp server have been ... configured to require authentication,but your outlook 2003 and outlook ... express authentication are not being configured on the client. ... (microsoft.public.windows.server.sbs)
Re: Exchange SMTP Hole? ... Maybe authenticated SMTP using some weak credentials? ... A worrisome new kind of attack is making the rounds on the ... 2000 Server have relaying turned off by default!" ...authentication on any SMTP virtual server that faces the Internet. ... (Focus-Microsoft)
Re: PLUG: PMAS ... analogue cellphones, it won't work for analogue TV, why should SMTP be any ... There are two forms of this Simple Authentication...MTAS and SMTP-AUTH + TLS between MUAs and MTAs. ... Again SMTP provides similar mechanisms through the use of either S/MIME or PGP. ... (comp.os.vms)
RE: Remote SMTP authentication audit tool? ... Just audit your local Windows accounts... If you do not use SMTP relaying,... If authenticated user relay is disabled, then weak or non-existent passwords... If you want to test your server like a spammer via actual SMTP authentication... (Bugtraq)
