Yes, if we put "=" between "The Queue message max size" and "Maximum email contentsize".
Also by definitions:
NethServer: The Queue message max size slider sets the maximum size of messages traversing the system
Endian: The maximum size in mega bytes of the e-mail that will be accepted by the SMTP server
In NS it's about mesages and in Endian it's about a single e-mail message. And the Queue is a "place" for all messages.
I'm not sure if it's about the same thing.