TCP/IP-channel-specific options: CONTINUATION_CHARS (string)
CONTINUATION_CHARS TCP/IP-channel-specific option is supported by the SMTP server (but not the LMTP server), and by SMTP and LMTP clients. It takes a list of integer values specifying the ASCII positions of additional characters that act like the continuation character specified using the
contchar channel option; that is, it specifies additional characters that will be accepted as line continuation characters.
This option was used to accomodate the peculiar form of batch SMTP that was employed by BITNET. Now that BITNET is no more, this option is obsolete and deprecated.