TCP/IP-channel-specific options: ALLOW_SESSION_BLOCKS (integer)
ALLOW_SESSION_BLOCKS TCP/IP-channel-specific option for the SMTP server imposes a block limit on the session as a whole. The session is disconnected if this limit is exceeded. If MTA transaction logging is enabled, the reason field in the close ("X") entry will show:
Maximum session data limit of xK octets has been exceeded
The default of
0 means no limit is imposed.