neoshagrath wrote: Q:Can I send resources to my friends?
A:Yes you can. But there are limits.
No player may knowingly send resources to a higher ranking player unless it is done during a trade (in accordance with the Trade Ratios posted on the forums). Once within a 24 hour period a higher ranking player may send the equivalent of 1 hour of production to a lower ranking player (pulling).

Q:24 hr production from the entire empire or from a single planet?
A:

Administrator wrote:1hr production of each planet/per planet.

Example:

Planet A 500 per hour
Planet B 100 per hour
Planet C 50 per hour

Planet A can send send 500 but not 550 even if total hour production is 650.

Note that even this is not making much sense, it is the only way as our algorith works in this way.

You can send 500 from Planet A, 100 from Planet B and 50 from Planet C. If you have 21 planets then you can send 1 hr production from each planet.
More details HERE