Can we say that hormones are produced exclusively by the endocrine glands?

Hormones are biologically active substances that are produced into the blood by the glands of internal and mixed secretion.

The endocrine glands secrete only hubbubs, for example, they include the thyroid gland, pituitary gland, adrenal glands, etc.

Glands of mixed secretion also secrete a hormone into the blood, but also a secret that goes into the body cavity, these include the gonads and the pancreas.

And the glands of external secretion secrete only a secret that comes out to the surface of the body or remains in it. For example: salivary glands, lacrimal glands, sweat glands, etc.