I have a large campaign going out and was asked to use a different email for auto responses like out-of-offices so as not to bog down the other email.
My colleague says that the Reply-To email is the one that will get actual responses from people who click Reply-To, but I believe email clients can vary in this situation.
Has anyone dealt with this before and can verify this?
AFAIK, most of the time, the reply-to address will be used, not the sender one.
Greg, are you saying the reply-to will be used for all replies - including out-of-office?
In most, but not all case, depending on how the receiving email server is setup.
As someone who sees support tickets about this fairly often, it can go to the reply-to or sender address. It depends on how the destination server is configured. Don't be alarmed if the address in the sender field does receive some auto-responders, it's pretty common that the reply-to address gets ignored.
So here's an update:
From the mailing there were 4k total bounces (out of 49k sent). About 1k auto-replies (bounces plus OoO, etc.) went to the Reply-To email, but NONE went to the From email. The 1k isn't a big deal, but nothing going to the other email box is a bit of a concern. Will need to dig in to this with IT to find out more.