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SMTP Port 25 is blocked - how can I open it?
We have just installed a new Small Business Server 2008 with Exchange 2007 four weeks ago. It has been working fine for the last couple of weeks.
But two days ago, my internet dropped out. My ISP suggested I reboot the router. Hey presto my internet worked.
Now today I realise I haven't been receiving emails since then.
I phoned the ISP who opened port 25. I can only assume they closed it.
Still no inbound email.
But outbound email works. Also website hosted in my office on 2nd webserver works as does FTP on my webserver. Port 25 is open on my router.
Telnet mail.esuite.com.au 25 ... no connection
Someone please help me analyse this problem.
But two days ago, my internet dropped out. My ISP suggested I reboot the router. Hey presto my internet worked.
Now today I realise I haven't been receiving emails since then.
I phoned the ISP who opened port 25. I can only assume they closed it.
Still no inbound email.
But outbound email works. Also website hosted in my office on 2nd webserver works as does FTP on my webserver. Port 25 is open on my router.
Telnet mail.esuite.com.au 25 ... no connection
Someone please help me analyse this problem.
first I ran an smtp test on your server http://www.mxtoolbox.com/SuperTool.aspx?action=smtp%3amail.esuite.com.au and yes port 25 looks blocked
however i tried to send email to test@esuite.com.au and noticed that in.sjc.mx.trendmicro.com is your relay.
is esuite.com.au your domain name ?
however i tried to send email to test@esuite.com.au and noticed that in.sjc.mx.trendmicro.com is your relay.
is esuite.com.au your domain name ?
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ASKER
Akhater,
FYI - I use trend micro's Hosted Email Messaging Service - which just filters our spam before it hits my server. I was going to mention it.
Anyway I am still astonished at the solution to this problem.
FYI - I use trend micro's Hosted Email Messaging Service - which just filters our spam before it hits my server. I was going to mention it.
Anyway I am still astonished at the solution to this problem.
ASKER
Unbelievable.
check with your ISP If they block SMTP traffic or not.