filebat Mark <filebat.mark@gmail.com> writes:

> I see, mail-alias quite fit the requirement.
>
> Since we may have several groups, it would be better if we can choose
> from alias list when sending email.  abbreviations

Use the function:

,----
| mail-abbrev-insert-alias
`----

> I am not sure I shall set mail-user-agent variable to what value.  I
> usually stay in the *Message* mode, when sending emails.

Since you use message mode you have 2 choices:

,----
| `message-user-agent'  -- use the Message package.
|                          See Info node `(message)'
| `gnus-user-agent'     -- like `message-user-agent', but with Gnus
|                          paraphernalia, particularly the Gcc: header
|                          for archiving.
`----

Charles

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