aiosmtpd>=1.4.3
alembic!=1.7.0,>=1.6.2
atpublic
authheaders>=0.15.2
authres>=1.0.1
click>=8.0.0
dnspython>=1.14.0
falcon>=3.0.0
flufl.bounce>=4.0
flufl.i18n>=3.2
flufl.lock>=5.1
gunicorn
lazr.config
python-dateutil>=2.0
passlib
requests
sqlalchemy>=1.4.0
zope.component
zope.configuration
zope.event
zope.interface>=5.0