Does mox fully support all imap_utf7 characters?

With imapsync, I have the following errors. In this case, "host2" uses mox:

Err 1/14: Could not create folder [2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO] from [2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO]: 498 NO [CANNOT] CREATE character & not allowed in mailbox name
Err 2/14: Host2 folder 2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO: Could not select: 500 NO [CANNOT] SELECT character & not allowed in mailbox name
Err 3/14: Could not create folder [2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO] from [2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO/2PAX_20_30_APR'24]: 505 NO [CANNOT] CREATE character & not allowed in mailbox name
Err 4/14: Host2 folder 2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO: Could not select: 507 NO [CANNOT] SELECT character & not allowed in mailbox name
Err 5/14: Could not create folder [2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO/2PAX_20_30_APR'24] from [2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO/2PAX_20_30_APR'24]: 508 NO [CANNOT] CREATE character & not allowed in mailbox name
Err 6/14: Host2 folder 2023_xF8FF_2024/DIRETTI/VALERIA&-MATTEO/2PAX_20_30_APR'24: Could not select: 510 NO [CANNOT] SELECT character & not allowed in mailbox name
Err 7/14: Could not create folder [2023_xF8FF_2024/YOU&-MEVIAGGI] from [2023_xF8FF_2024/YOU&-MEVIAGGI]: 878 NO [CANNOT] CREATE character & not allowed in mailbox name
Err 8/14: Host2 folder 2023_xF8FF_2024/YOU&-MEVIAGGI: Could not select: 880 NO [CANNOT] SELECT character & not allowed in mailbox name

About this issue, this answer can be interesting: https://serverfault.com/a/598680