Snappy Mail- use different SMTP User to send mail

Hi,
installed snappy mail.
nice so far.

but io dont get the
Override SMTP Credentials 2.4 to work
because of a SMTP proxy i have to send all mail via another user / passwort.
where can i put those credentials into snappy mail ?

i.e. receive user: user@mail.com
send user : proxy@mail.com

I think there’s an SMTP override plugin that can be used.

Hi jtr,
yes, i installed that. but i can’t find the override anywhere.

There’s not a cogwheel to the beside the name of the extension after it’s enabled?

No, also not possible to set an extra mail-user for outgoing mail.