Size limits on messages channel options

A number of channel options relate to message size limits. See also the Message size MTA options. The SMTP server also has some message size related limits; see TCPIP-channel-specific options. And for web-based email clients, see also the  MSHTTP option.

See also:
 * alternateblocklimit Option
 * alternatechannel Option
 * alternatelinelimit Option
 * alternaterecipientlimit Option
 * blocklimit Option
 * holdlimit Option
 * linelimit Option
 * noblocklimit Option
 * nolinelimit Option
 * nonurgentblocklimit Option
 * normalblocklimit Option
 * secondclassblocklimit Option
 * sourceblocklimit Option
 * urgentblocklimit Option
 * Message size MTA options
 * TCPIP-channel-specific options
 * maxmessagesize Option
 * Functional group list of channel options