* Accepted by: This indicates who or what accepted something. Example: "The proposal was accepted by the committee."
* Accepted into: This shows acceptance into a group or program. Example: "She was accepted into the university."
* Accepted as: This indicates the role or identity something was accepted to have. Example: "His explanation was accepted as the truth."
* Accepted with: This suggests acceptance along with something else. Example: "The award was accepted with grace."
* Accepted from: This indicates the source of something that was accepted. Example: "We accepted a donation from a generous benefactor."
Therefore, the best preposition to use will depend entirely on the meaning you want to convey.