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ZackFlag for Australia

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Exchange Performance Query related to TLS upgrade

Heyas,

We are running Mcafee SAAS to secure our exchange 2010 communications. Recently we switched from TLS 1.0 to TLS 1.2 and ever since then several of our applications which do batch mailouts of reports have been taking a long time to email.

As far as know no other changes have occurred in the network.

How would I go about troubleshooting this from the exchange end?

Any assistance is appreciated.

Thank you
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Busbar
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Do they send using SMTP ?! did you configure SMTP to use SSL !?
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ASKER

Hi Mahmound,

Yes, it sends using the SMTP and SSL used as well.

Thank you.
would this be causes because you lack this update https://support.microsoft.com/en-us/kb/3029667
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ASKER

Hi Bushbar,

My apologies for not getting back to your sooner. Thank you for the update link I will check. A query how would this cause performance issues?

Thank you.
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Busbar
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ASKER

Hi Busbar,

Finally worked it out via wireshark it was an issue with TLS timeout but it was only occurring on one of the relay servers.

Thank you.