All free services have boundaries, and Tumblr Post limits are no exception. If you are one of those rare few that love to spam your followers with quotes and pics of yourself, this may be interesting. The maximum amount of posts per day that Tumblr lets you create is 100 (the equivalent for photo posts is 75).
This limitation also takes into account the feed imports, counting them as regular posts.
There are some methods though, to bypass tumblr ask limits.
What Is Tumblr Daily Post Limit
250 daily Posts (includes reblogs).
Is There Anyway To Bypass Tumblr Post Limit?
The posting limit always resets at a certain time of the day, we don’t know the exact time, but if you thought that you could somehow keep posting non-stop, you were wrong.