Dear All,

I am hoping someone could help me with this issue. 

I look after the exchange network for our organisation and I have received a call to state that when we send email meetings externally they are received as an .ics attachment containing the primary SMTP as the sender email address, whereas when sent externally they need to be changed to the external email secondary SMTP address.  In order to rectify this fault I have come up with a couple of options but I am unable to know how to rectify this, they are:

1.  Prefererence - To send the meeting externally as a meeting request where the external sender address has been converted to the external secondary SMTP address.  Would this be possible?

2.  To change the organizer of the meeting in the ics attachment to the external secondary SMTP address rather than staying as the Primary SMTP address.  Is this possible?

We use Exchange 2013 on Windows 2012 R2 Virtual Machines.

Regards,

Phil

Probably the easiest way to achieve this would be with an edge server and address rewriting.  Although I'm not totally sure if you can target just calendar appointments with the rewriting.

We have a similar setup with the exception that everyone in our organization has 2 to 3 email aliases (all different SMTP domains).  We had to write a custom transport agent that does the address switch depending on certain characters put into the subject line.  So if I want to send emails using my secondary address I put a ":p:" in the subject.

You can look at the "Smart Reply" add-on by IvaSoft: http://ivasoft.com/smartreply2010.shtml

With that add-on, the users would be responsible for changing the from address before sending an email meeting request.

Hi Corey

Thankyou for the reply.  We are in a similar situation as yourself in that we have 3 email aliases as well.  However our primary smtp is the internal email suffix, this is shown in the ics attachment.  However if the email is sent externally we need to be able to convert this email address to the external email suffix.

Could you explain what you had to do to carry out address rewriting please.