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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, design exchange, cisco connected, cisco 100 remote, 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, computer networks, cisco firewall, server case, windows server port, connecting server, domain computer, domain checking

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

ID do Projeto: #175324