Answer by ToanNV for How can set name for source/from attribute on sent emails?

SES doesn't support Japanese characters by default, so you have to encode from name with iso-2022-jp encoding.

below is sample in python.

from email.header import Headerimport osFROM_ADDRESS = os.environ.get('FROM_ADDRESS')FROM_NAME = os.environ.get('FROM_NAME')...from_address = '{} <{}>'.format(Header(FROM_NAME.encode('iso-2022-jp'),'iso-2022-jp').encode(), FROM_ADDRESS)