So I was looking for a possibility to manage the mail distribution of online shops, newsfeeds, etc. and have a nice solution via distribution groups aka. alias addresses. In example, I register an account on eBay using "email@example.com" (where org.com is my company obviously). That address is an alias and can be managed on my on-premise mail server setting destination to somebody's mailbox independent from logging on to eBay - in case somebody else shall do the eBay-stuff, I can quick change the destination of that alias :-)
So far, so good - and now to the problem:
Using Microsoft Outlook 2010 and an IMAP account on our mail server, I cannot figure out how to remove that "on behalf of"-string visible in the from-field when sending a message under that firstname.lastname@example.org address. That's quite a pity, because especially eBay doesn't accept/forward mails not coming from the registered address..
Using other mail clients (e.g. Mozilla Thunderbird), the problem does not occur so I guess it's Outlook specific.
I cannot "grant" permission to "send as", because that address is not a mailbox, but rather an alias only. Furthermore, the mail accounts are not Exchange, but IMAP!
Does anybody have any other ideas to "remove" that annoying string?
Consideration: We have to use Microsoft Outlook for some reason! :-)