Sending warning to sender for external email address

Hi;

I am using Exchange 2013 Standard, is there anyway that I can do on Exchange to send a warning email back to sender if who try to send email out of the organization email domain?

Can I turn on something on Exchange

September 8th, 2015 7:10pm

Hi,

Transport rule can do this, for example:


By the way, when users send messages to external email address, this mailtip will show up by default.

Best Regards.

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September 8th, 2015 9:26pm

thanks for the reply but this is not I want.

1. the email still need to be sent.

2. just sending a warning email back to sender to remind him/her that the email just sent is for external email domain.


September 8th, 2015 11:18pm

Hi,

I have a workaround for your situation.

Create a new mailbox for sending the warning messages.

Configure auto-reply on this mailbox.

https://technet.microsoft.com/en-us/library/dd638217%28v=exchg.150%29.aspx

Create a transport rule to send the external messages to this new mailbox as well.

Remember to assign retention policy to this mailbox.

Best Regards.

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September 9th, 2015 5:05am

Hi ,

In addition to the Lynn-Li suggestions , you can make use of the Mail tips in exchange 2013 .

Please use the below mentioned command to configure the mail tips .

Set-OrganizationConfig -MailTipsExternalRecipientsTipsEnabled $true

Reference Links: 

https://technet.microsoft.com/en-us/library/jj649091(v=exchg.150).aspx

https://technet.microsoft.com/en-us/library/dd638109(v=exchg.141).aspx

September 9th, 2015 9:11am

Hi;

interesting.  with this workaround, this rule apply to all email and exchange will detect it and BCC to the "User 1" which is the mailbox for sending back the alert.  isn't it?

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September 9th, 2015 6:11pm

I tested this alternative. The only problem of this alternative is that if I send a first email to abc@Hotmail.com, it will return me the alert email.  However, when I send 2nd time to the same email address, there is no alert email send back again because the system detected that it has been sent for this email address.
September 9th, 2015 7:06pm

I found a solution to overcome this issue by using this solution ....

http://support.savance.com/index.php?/eioboard/Knowledgebase/Article/View/214/14/setup-out-of-office-rule-that-replies-every-time

the alert message will be sent ever

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September 9th, 2015 7:47pm

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