When you sign up for an AuthSMTP
account - the email address you use is automatically
allowed to send mail using your account.
If you have additional email addresses
you send mail 'from' you need to authorize these for
use with AuthSMTP - to do this please login to your
Control Panel at: http://control.authsmtp.com
If you still get these errors after
correctly authorising your email 'from' addresses
check
that the email address (as listing on your email program)
does not have any additional characters before or
after
the email address - for instance it should just be
something like:
first.last@domain.com
Correct!
first.last@domain.com
Has a space at start or end of email address
'first.last@domain.com'
Has extra characters before or after email address
