On Saturday, 11 March 2023 at 12:56:16 UTC, Steven Schveighoffer wrote: > On 3/11/23 5:12 AM, seany wrote: >> email.headers["Sender"] = "<<myapp_de.sean at gmail.com>"; // >> valid mail > > Looks like an extra `<`, is that correct? > No, i mistyped that when i changed the email address after copying it in here. The original code does not have that extra < sign Thank you.