Is it appropriate for the last signature in the greeting to be from XXX?

yes.

The signature from XXX not only tells the other party who wrote the letter, but also shows respect and respect to the other party.

However, the signature from XXX is used to send messages to elders and leaders, but not to peers and younger generations. If it's from so-and-so, it means it's sent to people who need respect, such as leaders, so we should always pay attention to using honorifics in short messages and not be too casual.

extended data:?

greetings for the elderly?

1. I wish my parents good health, good mood, happiness as the East China Sea, longevity as the South Mountain, youthful looks and a happy new year!

2. I wish grandma good health and a long life. All the best and happiness in old age; Happy birthday, happiness in the future.

3. I wish the old people more wealth, longevity and wealth, add luster and auspiciousness, be as happy as the East China Sea, and live longer than the South Mountain!

4. Best wishes to the old birthday girl, who is as happy as the East China Sea, and the sun and the moon are bright. Songhe Changchun, the spring and autumn are not old, the old and the new, and the joy is far longer.

5. If the moon is constant, if the sun rises, if the life of Nanshan is long, it will not collapse. Such as the luxuriant pines and cypresses, it is a birthday speech. Interpretation, as long as the sun does not fall, as the moon rises every day. Like Nanshan, it has no boundaries, and it will not migrate or collapse.

6. I wish grandpa a long life, long life, today every year, today every year, as old as a pine and cypress.