When we send out our e-Blasts we usually receive a bunch of Out of Office replies immediately. One of these was from someone that we did not send to, nor are they in our Marketo/Salesforce CRM. We also checked based on his name and company, and he is in neither systems. How is this possible?
That could be the forward to a friend then.. anyone can forward your email and being that it still comes "from" you/your email, you would get the Out of Office reply. I wouldn't worry too much about it unless the person replies or unsubscribes, in which case you can always just ask them where they received the email from, or start a conversation with them if they are a potential prospect! Best of luck!
I agree with Kim - sometimes when a contact leaves a company, their email is automatically forwarded to someone else, and they may be out of office, triggering their response to you.
This person may be a recipient on a distribution list for an alias email (helpdesk@, etc.), or emails from the recipient address are forwarded to them (someone left the company, etc.). Then the out of office would reply to the original sender.
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