Any chance of bumping up this limit @bameron? 

I'm seeing a lot of this failure with O365 email that's being redirected to an Orcon email account. 

This is the mail system at host ak1-mlx-out-a01.webhost.co.nz.

I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.

 <xxxx@orcon.net.nz>: host mx1.orcon.net.nz[60.234.4.47] said: 552 5.6.0 Headers

    too large (32768 max) (in reply to end of DATA command)