email - Ruby send mail with DSN -

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using gem mail , considering http://www.sendmail.org/~ca/email/dsn.html want this:

mail = mail.new mail.delivery_method :smtp, :address => 'smtp.server.com', :port => 25 mail.from = 'sender@smtp.server.com' mail.to = '<recipient@yet.another.server.com> notify=success orcpt=rfc822;recipient@yet.another.server.com' mail.deliver!

and error:

...ruby/2.1.0/net/smtp.rb:957:in `check_response': 501 5.1.3 bad recipient address syntax (net::smtpsyntaxerror)

then try monkey-patching (i know it's dirty):

class net::smtp   def rcptto(to_addr)     if $safe > 0       raise securityerror, 'tainted to_addr' if to_addr.tainted?     end     # replace     # getok("rcpt to:<#{to_addr}>")     #     getok("rcpt to:<#{to_addr}> notify=success,failure,delay orcpt=rfc822;#{to_addr}")   end end

and works fine it's ugly (

does know more legal , beauty solution?

according documentation source code , readme page on github, need that:

mail = mail.new mail.delivery_method :smtp, address: 'smtp.server.com', port: 25 mail[:from] = 'sender@smtp.server.com' mail[:to]   = '<recipient@yet.another.server.com> notify=success orcpt=rfc822;recipient@yet.another.server.com' mail.deliver!

may more elegant way be:

mail = mail.new   'sender@smtp.server.com'   '<recipient@yet.another.server.com> notify=success orcpt=rfc822;recipient@yet.another.server.com' end  mail.delivery_method :smtp, address: 'smtp.server.com', port: 25  mail.deliver!

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