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Application using IMAP to fetch emails not working with exchange 2013

HI All,

We are running exchnage server 2013 with CAS and mailbox role running on different servers

I have an application which uses IMAP to connect to exchnage server to  fetch emails and it has a dedicated mailboxes created on exchnage server,the connection keeps disconnecting frequently,what could be the issue ,the same application was working fine with the exchnage 2010 environment.



Regards
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Amit
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Any error in application logs. Set logging level and then check the logs. This will help you to find the root cause. Use this KB:
https://technet.microsoft.com/en-us/library/aa997690(v=exchg.150).aspx

I also suggest you to check AV exclusion. Make sure Exchange related files are excluded.
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ASKER

i have uninstalled the anti virus already form the CAS server,should it be uninstalled on the mailbox server as well?
I don't advise to remove AV. Just set the exclusion for Exchange bin and db folders. As I said above, enable the logs. I hope your server is upto date with latest patches.
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ASKER

all the required exclusion is already in places as per recommendation,just one question which connector usually the imap  connections flows ?
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Amit
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Amit,

Thanks a lot for your valuable response, i would like to simplify the issue faced by me again.

I have a application which uses IMAP to fetch email from a dedicated mailbox created for it ,what this application does is ,fetches the email from that mailbox and process it and sends reply using SMTP,on the application side i see settings for both imap and smtp,the problem is after every 30 to 40 minutes the application is not able to fetch email from the mailbox and some servcies has to be restarted on the application and it starts fetching the emails again for an hour or so and again in stops,i have created a dedicated relay connector for SMTP relay for this application to send emails,i just wanted to know which connector will the imap use ,since i have the cas and mailbox role seperated on which server should i enable the logging and check?

As you said i'm sure this problem is because of the architecture changes in exchnage i feel its because of SSL change in exchange 2013 the same setting was working fine with exchnage 2010
any update you want to share?
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ASKER

Hi Amit,

the issue is not yet resolved we are still fighting with both Microsoft and Oracle to get this resolved.
np will wait for your update