Add info wich Flow was triggered and sent the mail.

[marvn-r3]

Please describe the feature you would like to see implemented.

I think it would be a great feature, if you are able to spot the corresponding flow, which sent the mail. Especially for debugging, it would be a helpful thing.

I have no clue, if it is technically doable.

[tinect]

Technically, everything is doable. The question would be: is it worthy,
do you have it implemented, yet?

[marvn-r3]

It's just a Html demo. I have no clue in plugin development. Im only familiar with SW Theme development in general.

It was just an idea and I thought this would be a good place to share.

[shyim]

we can use the headers provided by this header shopware/shopware#3756