Mac OS X Mail default reply-to address

I’ve been having some email trouble lately, so I wanted to set a different reply-to address using OS X Mail. This is not quite as easy as it is on other operating systems and email clients, but it can be done. Using terminal, enter the following code to set a default reply-to address:

Here’s how to set a default reply-to address for Mac OS X mail:


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    You can also add other types of default headers using the same method.