It looks like messages you or your mail application have marked as spam / junk messages are being moved to your Sent folder. In the settings for your account, you can set it up for how you want spam or junk messages handled -- where you want spam or junk messages to go to. Check your settings to make sure they haven't been set to go to your Sent folder instead of your Spam folder. You usually have three options.
Send the message directly to the Trash folder.
Send it to a Junk or Spam folder so you can review it to make sure it is spam before your send it to Trash.
Send it to some other folder name you want it to go to.
Set up a filter to apply a label to all your outgoing mail (From: yourID@gmail.com gets the label "outgoing")
NOT under filters, but under forwarding, enable the forwarding of all mail to the single targeted address.
Restrictions:
If you try to do this solely using filters, the forwarding will not happen. You must enable forwarding of all mail to the intended recipient (the "manager") from the forwarding tab.
You can't forward to multiple addresses this way unless you use the primary recipient address to then split the mail into many destinations.
All mail both incoming and outgoing will be forwarded.
Best Answer
It looks like messages you or your mail application have marked as spam / junk messages are being moved to your Sent folder. In the settings for your account, you can set it up for how you want spam or junk messages handled -- where you want spam or junk messages to go to. Check your settings to make sure they haven't been set to go to your Sent folder instead of your Spam folder. You usually have three options.