# Perform greylisting on incoming messages with no envelope sender here.
# We did not subject these to greylisting after RCPT TO:, because that
# would interfere with remote hosts doing sender callout verifications.
# Perform greylisting on incoming messages with no envelope sender here.
# We did not subject these to greylisting after RCPT TO:, because that
# would interfere with remote hosts doing sender callout verifications.