Here are the dmarc recommended options:
https://dmarc.org/wiki/FAQ#I_operate_a_mailing_list_and_I_want_to_interoperate_with_DMARC.2C_what_should_I_do.3F
Any "good" option will require modifying the from field, signing using dkim, supporting spf and provide a publicly verifiable certificate when sending.
It seems canonical does not do any of the four.
Here are the dmarc recommended options:
https:/ /dmarc. org/wiki/ FAQ#I_operate_ a_mailing_ list_and_ I_want_ to_interoperate _with_DMARC. 2C_what_ should_ I_do.3F
Any "good" option will require modifying the from field, signing using dkim, supporting spf and provide a publicly verifiable certificate when sending.
It seems canonical does not do any of the four.