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							#!/usr/bin/env sh
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							# support smtp
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							smtp_send() {
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							  _subject="$1"
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							  _content="$2"
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							  _statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
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							  _debug "_subject" "$_subject"
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							  _debug "_content" "$_content"
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							  _debug "_statusCode" "$_statusCode"
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							  _err "Not implemented yet."
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							  return 1
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							}
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