No, you are not entitled to any
support, whether or
not the email address is present.
The purpose of that email address is to document who wrote
the software. But they have no obligation to provide
support, answer questions, or supply fixes for problems.
They also have no obligation to accept patches, treat you
In point of fact you are likely to get all this and more.
But I assure you that if you tell the authors of the
software that their generousity has obliged them to
do anything in the future, they will generally not be
very happy about it. This is something that they
choose to do. If you treat them rudely you will
find that they are liable to choose to be rather
By contrast companies truly are obliged to give support.
And you will note that they generally do not give one drop
more support than they feel they have to. IMHO that
reflects human nature. People don't like being obliged to
do things, and so do things they are obliged to do only
grudgingly. People like doing things they voluntarily do,
and are liable to go an extra mile...