Hi guys,
as you wrote here in the documentation:
"...In case of your public DKIM key is found on your DNS and appears as a valid key but your signature is still not valid, your mail server may have changed a bit the content of the message after Acy added its signature... and if it's the case, your signature will fail.
Most of the time, the mail server changes the encoding format. You should change your encoding format in AcyMailing to quoted-printable instead of 8bit to prevent this kind of modification by your server...."
What I don't understand is: is it always better to keep the "8 Bit" configuration until we encounter problems OR is it always better to set "quoted-printable" configuration to prevent errors?
What is the technical difference in performance between the two configurations?