| keywords | R Documentation | 
Add or query keywords of message.
keywords(msg, ..., append = FALSE)
msg | 
 A message object.  | 
... | 
 Keywords.  | 
append | 
 Whether to append or replace keywords.  | 
A message object or the comments of the message object (if comments is NULL).
to, from, cc, bcc and reply
# Create a message and set the keywords.
envelope() %>% keywords("newsletter, marketing")
envelope() %>% keywords("newsletter", "marketing")
envelope() %>% keywords(c("newsletter", "marketing"))
# Retrieve the keywords for a message.
msg <- envelope() %>% keywords("newsletter, marketing")
keywords(msg)
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