On what hosting to store images for email distribution?

Question

Images

Hello everyone, the essence of the question is as follows: I am engaged in the layout of a letter for a customer and I need to store images somewhere (on my hosting is not an option, it constantly crashes). Recommend some web service that stores images for a long time (up to six months), does not publish them anywhere and provides a direct link

Answer 1

google disk
dropbox

Answer 2

Usually pictures are integrated by back-end developers into the letter.
ge.tt

Answer 3

Any sane mailing service provides a cdn for pictures.