At the S> prompt, you can use the command display to see what the message looks like before you send it.
Type display or just d.
MM>send To: fb2 cc: mm33, hk12 Subject: Meeting on Sept 21 Message (End with CTRL/D or ESC Use CTRL/B to insert a file, CTRL/E to enter editor, CTRL/F to run text through a filter, CTRL/K to redisplay message, CTRL/L to clear screen and redisplay, CTRL/N to abort, CTRL/P to run a program and insert output.): Let's meet on Sept 21 at 2:00 to go over plans for this semester Joe [escape] S>d From: Joseph Brennan <firstname.lastname@example.org> To: fb2 Cc: mm33, hk12 Subject: Meeting on Sept 21 Let's meet on Sept 21 at 2:00 to go over plans for this semester. Joe S>
The above example has a very short message, to save space on this page. Using display is much more valuable when, for a variety of reasons, you cannot see the whole message on screen already. You will find display useful if: you can't scroll up to reread the message; you included a file with control-b; the original screen display was broken up by noise or system messages; and in some other situations.
By itself, display means display the whole message. You can specify parts of the message, as text, headers, or the name of any field in the header. The command display headers or d h is quite useful if you want to check who you addressed the message to without displaying a long text with it.
S>display text Let's meet on Sept 21 at 2:00 to go over plans for this semester. Joe S>
S>d h From: Joseph Brennan <email@example.com> To: fb2 Cc: mm33, hk12 Subject: Meeting on Sept 21 S>
S>d to To: fb2 S>
If the addresses are your own aliases, or if you inserted them from a file using @filename, when you display you will see the real addresses that will be used. You may want to verify that the alias or mailing list is what you intended.
After display, the next step, in some cases, is to go back and fix something. There are numerous commands you can use at the S> prompt that let you add, remove or change parts of the outgoing message.
You can also add, replace and remove other header fields. Type a question mark at the S> prompt to see all the commands available.
After making changes, use the display command again to check the message.