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Exchange Server 2003 SMTP Crashed

-------------------[ Network Design ]----------------------------

Computer-1: Exchange Server 2003(sp2) + Windows Server 2003 (sp2)

Computer-2: Domain Controller, Windows Server 2003 (sp2)

Pix-Firewall Protecting Internal Network

Cisco Router Connected to ISP

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Problem:

A Week before, All external emails stop receiving, users can send/receive to Internal Network users but can't receive emails from External domains/Networks, also users can send emails to external domains (internet)

I have Checked every Possibility like, turn off firewall Access-lists, Reinstall smtp, reinstall IIS, reinstall Exchange server, Even re-install the whole windows and then recovered the mailboxes (which i had taken backups before) Database mounted successfully but again it crashed the smtp.

Now what i mean by crashing smtp is: when i telnet smtp from The Exchange Server (telnet 127.0.0.1 25) i see nothing it again comes to C:> Prompt without giving me any message. I get same message when telnet from outside or inside, or by ip or by hostname etc.

I used smtpdiag and i get the message

--------------------[SMTPDIAG MESSEGE]-----------------------

Both TCP and UDP queries succeeded. Remote DNS test passed.

Checking MX servers listed for administrator(at)mydomain.com.

Connecting to [url removed, login to view] [213.x.x.x] on port 25.

Error: Expected "220". Server is not accepting connections.

Failed to submit mail to mail.mydomain.com.

Connecting to [url removed, login to view] [213.x.x.x] on port 25.

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I need a guy who is 100% confident to solve this problem, BUT I'M ONLY WORRIED ABOUT THE OLD MAILBOXES, I dont wanna lose that in any case.

Habilidades: Linux, Administrador do Sistema, Área de trabalho do Windows

Ver mais: system server, server domain, i.t. administrator, design exchange, cisco connected, cisco 100 remote, what is exchange server, exchange servers, windows server 2003, windows administrator, server administrator, server 2003, router cisco, remote server, remote admin, network cisco , mx guy, ip tcp, install server, iis server, exchange, Computer networks, cisco firewall, com port tcp, server case

Acerca do Empregador:
( 0 comentários ) UK, United Kingdom

ID do Projeto: #175324