What is wrong in my script?

require 'net/smtp'

def send_email(from, from_alias, to, to_alias, subject, message)
msg = <<END_OF_MESSAGE
From: #{from_alias} <#{from}>
To: #{to_alias} <#{to}>
Subject: #{subject}

#{message}
END_OF_MESSAGE

Net::SMTP.start("smpt.server", 25) do |smtp|
smtp.send_mail msg, from, to
end
end

send_email("from", "from_alias", "to", "to_alias", "subject", "message")

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