http://forum.mailenable.com/viewtopic.php?f=5&t=27935
The send from option to change both envelope and header "from" address is to cater for the new DMARC checks that yahoo and other large hosting providers now check for.
The send from option to change both envelope and header "from" address is to cater for the new DMARC checks that yahoo and other large hosting providers now check for.