Does anyone know why I'm getting the following error when the order confirmation mail is sent?
The mail is sent out to the client, but I get
a) error message on the checkout pane of the user that the mail could not be sent
b) in the dblog I see the following :
LOCATION http://..../nl/checkout/28/payment
REFERRER http://..../nl/checkout/28/review
MESSAGE Error sending e-mail (from ...@.. to commerce-order:mail).

I didn't mess with the email notification rule.
I did translate the message.

Can anyone help me?