Hi:
I’m trying to use the Custom Headers feature of emails (on the Advanced tab) but when I check the header of a received email it’s not actually there. I’m using SendGrid API to send. Any ideas? Is this a bug?
Thanks!
Bob H.
Hi:
I’m trying to use the Custom Headers feature of emails (on the Advanced tab) but when I check the header of a received email it’s not actually there. I’m using SendGrid API to send. Any ideas? Is this a bug?
Thanks!
Bob H.