sendmail()
do not have to set them in the control
argument.sendmailOptions(...)
name=value
or by
passing a list of such tagged values. However, only the ones
below are used in base sendmailR.sendmailOptions()
, a list of all set options sorted by
name. For sendmailOptions(name)
, a list of length one
containing the set value, or 'NULL' if it is unset. For uses setting
one or more options, a list with the previous values of the options
changed (returned invisibly).