We have a requirement to sign outbound messages with DKIM keys. I have seen discussions on this list for people using dkim-milter as well as opendkim. dkim-milter hasn't been updated since 2009 while opendkim hasn't been updated since 2015. dkimpy is more actively maintained but hasn't been updated in 2 years. A requirement of dkimpy-milter is python which may pose an issue security wise. Are there any other solutions out there to should be considered as well?
Not sure what direction to go in, what does everyone think?
