Here is the situation, emails working last week, today get a call no incoming mail, but outbound appears to be ok.
Client is running SBS 2003 with all relevant service packs installed. They have stopped receiving external emails. Client sent me a test email which arrived about 5 hours after sending. I sent one back and after 2 hours received a delayed msg. (see details.txt)
I have also lost the ability to remote control the server, and cannot login to the router remotely. both of which I did 3 days ago.
I have got the client to restart the server twice
I tried to manually send a email to the server by telnet to mail.client.com.au on port 25 and use the Ehlo commands to manually send, was able to succesfully send a email as far as post fix was concerned. but when I asked the client if they received the email they advised me they hadn't.
When I tracert the external IP it hops through a number of servers and then times out, 12 * mel-core02-ixnt.ispone.net
.au [18.104.22.168] reports: Destinat
ion host unreachable.
My question is if this is a ISP issue, as the client can access the internet and outbound emails appear to be working. I can't visit the site immediatey as they are pretty remote, anyone seen something like this? details.txt