In order to use your own sender address, please send the address to firstname.lastname@example.org.
We will then send a verification email to this address from our provider Amazon. There is a verification link in the email to verify that you are the owner of the email. If the link was clicked, we can unlock the address in yve.
Some e-mail servers block or give warning messages for e-mails that have their own e-mail address but have been sent by external e-mail servers or if the FROM address has not been approved by an SPF record. Please test (or ask your IT) if this is the case with you or your recipients and contact email@example.com