The Mutt E-Mail Client : Reference : Configuration variables : sendmail_wait
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## 6.3.234. sendmail_wait

Type: number
Default: 0

Specifies the number of seconds to wait for the `` $sendmail'' process to finish before giving up and putting delivery in the background.

Mutt interprets the value of this variable as follows:

>0

  number of seconds to wait for sendmail to finish before continuing

0

  wait forever for sendmail to finish

<0

  always put sendmail in the background without waiting

Note that if you specify a value other than 0, the output of the child process will be put in a temporary file. If there is some error, you will be informed as to where to find the output.

The Mutt E-Mail Client : Reference : Configuration variables : sendmail_wait
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Next: shell