[Mailer] Command mailer:test seting fake 'From' header by default, gives misleading test results

[MIvanIsten]

Symfony version(s) affected

7.0.7

Description

If no framework.mailer.headers.From parameter is set, and no from option is given in command line, the command should fail, indicating incomplete configuration.
Forcing a fake From header hides this information.

How to reproduce

comment out framework.mailer.headers.From in mailer.yaml
send a test email with bin/console mailer:test without using --from option
received email contains a From: from@example.org header

Possible Solution

remove default value from from input option
set $message->from() only if from input option is given in command line

Additional Context

No response

[MatTheCat]

I don’t think this is an issue: as the command description says, its purpose is to test transports.

[MIvanIsten]

I don’t think this is an issue: as the command description says, its purpose is to test transports.

Not respecting configuration makes test results irrelevant / unreliable. I think this is an issue.