PMDF System Manager's Guide

Keyword relaxheadertermination is the default and corresponds to PMDF's standard behavior, which is to treat a line containing only spaces and tabs as meaning the same as a blank line, i.e. it terminates the header and the rest of the message is considered the body. If keyword norelaxheadertermination is specified on a channel, then a line within the header containing only spaces and tabs is treated as a continuation of the previous header line, and PMDF continues to process the next lines as part of the header.