Dear Experts,

I migrate from exchange 2007 to exchange 2013 CU5 and i am in coexistence state now  and everything work fine except the mail tips,

I enabled Mail tips by following power shell commands on exchange 2013:

Set-OrganizationConfig -MailTipsAllTipsEnabled $true
Set-OrganizationConfig -MailTipsLargeAudienceThreshold 25

Set-OrganizationConfig MailTipsExternalRecipientsTipsEnabled $True

Set-OrganizationConfig -MailTipsMailboxSourcedTipsEnabled $trueSet-MailboxServer EX10-MB01 -GroupMetricsGenerationEnabled $true

After that some mail tips worked but others not, for example if i try to send to more than 25 recipients a mail-tip indicate that the number of recipients is more than 25, also for out of office it's worked, but the other mail tips listed below is not working:

-External Recipients: The External Recipients Mail Tip is displayed if the sender adds a recipient that's external, or adds a distribution group that contains external recipients.

-Reply-All on Bcc: The Reply-All on Bcc Mail Tip is displayed if the sender receives a Bcc copy of a message and selects Reply to All.

I checked the EWS and Auto discover virtual directories and everything appear fine and accessible for users.

SO could anyone suggest a solution for this ?

Thanks in advance.

• Edited by Ahmad N Yasine Saturday, March 07, 2015 11:11 PM

any suggestions still face the same problem

Hello

tip:https://social.technet.microsoft.com/forums/exchange/en-US/17e1b7f3-21c2-4dc0-8702-3f60dbc28945/mailtips-not-working-externally