Display Name in Email Marketing Task is ignored in From header

Hi BillionMail team,

I'm using BillionMail v4.9.0 and found an issue with the sender Display Name.

Issue

In an Email Marketing task, I set:

• From: [email protected]
• Display Name: Vua Nem

But the delivered email shows:

vuanem [email protected]

instead of:

Vua Nem [email protected]

I confirmed this in Gmail's "Show original".

The same issue occurs with other mailboxes, where BillionMail seems to use the mailbox local-part as the sender name and ignores the Display Name configured in the task.

Expected

Use the Display Name configured in the Email Marketing task.

Actual

Display Name is ignored and replaced by the mailbox local-part.

Could you please confirm if this is a bug in v4.9.0 or if additional configuration is required?

Thanks!