When i send a message to a recipient(Exchange 2010) and then recall it using Outlook 2013 i receive an error (recall failed) after a few days from a user who i did not send the e-mail to. When looking in the message headers he is the "FROM:" user.
When looking in the message tracking logs, i see lots more of these email from him regarding recall messages.
For example: When i send an email to user aaa@corp.com and i recall it afterwards i receive a failed to recall message from userbbbb@corp.com.
Does someone have an idea where this could be comming from?