Exchange 2010 not sending or receiving email.

Good morning,

I have a sbs2011 server with exchange 2010.  We recently, as of 12/1/2017, started to have issues with our server locking up during the backup process.  Because the server goes unresponsive, I am forced to perform a hard shutdown of the server by holding down the power button.  Once the server is brought back up, and we log in, noticed that the time is off.  Have that issue resolved now but we are not able to send or receive emails from inside or outside of our domain.  I can login to the outlook web app without issues. Internet is working as well.  Any ideas?
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Steven BlackAsked:
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Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
Usually sending and receiving are two different problems. So check to make sure the Exchange services are starting. Also check the Event Viewer logs for any clues about what might be going on. Finally, if you don't have any problems showing there, confirm that you are actually receiving incoming mail by checking your firewall logs or your ISP.

If you want help with the backup issue, feel free to put that up as a separate question as I'm sure there are Experts that could help you with that as well.
Radhakrishnan RSenior Technical LeadCommented:
Hi,

Is all the data store mounted? usually when you do forced reboot, the exchange database falls under dirty shutdown which leave the data store to unmounted state. But you said 'OWA' working fine, so it's lagging bit there.

The 'time' issue you mentioned, from where it's getting the time? external or from local NTP server (from your PDC holder)? if the time is not correct (i.e - time difference than DC) then this would cause exchange issues.

Restart the transport services and see if it works?
Steven BlackAuthor Commented:
I have checked the database and it appears that all databases are mounted.  I have also restated the exchange transport service thinking that would resolve my issue, but unfortunately it did not.  PDC is the SBS server and it is looking externally for time.
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Tom CieslikIT EngineerCommented:
Double check if all Exchange services are working OK.
Maybe transport service is off, this would explain that you can log on but sending and receiving is not working.
Tom CieslikIT EngineerCommented:
Is there any errors in system or application event log ?
Steven BlackAuthor Commented:
Transport service is enabled and currently running.
Radhakrishnan RSenior Technical LeadCommented:
Hi,

Run https://testconnectivity.microsoft.com/ and see if you can pinpoint anything?

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Brian BEE Topic Advisor, Independant Technology ProfessionalCommented:
Run https://testconnectivity.microsoft.com/ and see if you can pinpoint anything?
Good idea. I would try the inbound and outbound SMTP tests first.
Steven BlackAuthor Commented:
Ok.  Will try those in a few.  Thanks
Steven BlackAuthor Commented:
Thanks everyone for the assistance.  Found a certificate that somehow corrupted.  Appreciate all the help.
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