''F=d'' '''


Never enclose route addresses in <> V8.7 and above

Ordinarily, V8 sendmail forces envelope-sender route addresses[28] to be enclosed in angle brackets. But beginning with V8.7 sendmail, angle brackets can be omitted by specifying F=d.

[28] Also see the DontPruneRoutes option in DontPruneRoutes, and how route addresses are handled in rules in Section 19.3.3.

Under some circumstances it is possible for these angle-bracketed addresses to be given to a shell, causing them to be wrongly viewed as I/O redirection. This problem is most common with the UUCP and prog delivery agents.

    Part I: Build and Install
    Part II: Administration
    Part III: The Configuration File
    Chapter 21. The D (Define a Macro) Configuration Command
    Chapter 24. The O (Options) Configuration Command