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@ -2,7 +2,103 @@ |
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# support smtp |
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# This implementation uses Python (2 or 3), which is available in many environments. |
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# If you don't have Python, try "mail" notification instead of "smtp". |
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# SMTP_FROM="from@example.com" # required |
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# SMTP_TO="to@example.com" # required |
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# SMTP_HOST="smtp.example.com" # required |
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# SMTP_PORT="25" # defaults to 25, 465 or 587 depending on SMTP_SECURE |
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# SMTP_SECURE="none" # one of "none", "ssl" (implicit TLS, TLS Wrapper), "tls" (explicit TLS, STARTTLS) |
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# SMTP_USERNAME="" # set if SMTP server requires login |
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# SMTP_PASSWORD="" # set if SMTP server requires login |
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# SMTP_TIMEOUT="15" # seconds for SMTP operations to timeout |
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# SMTP_PYTHON="/path/to/python" # defaults to system python3 or python |
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smtp_send() { |
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# Find a Python interpreter: |
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SMTP_PYTHON="${SMTP_PYTHON:-$(_readaccountconf_mutable SMTP_PYTHON)}" |
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if [ "$SMTP_PYTHON" ]; then |
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if _exists "$SMTP_PYTHON"; then |
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_saveaccountconf_mutable SMTP_PYTHON "$SMTP_PYTHON" |
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else |
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_err "SMTP_PYTHON '$SMTP_PYTHON' does not exist." |
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return 1 |
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fi |
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else |
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# No SMTP_PYTHON setting; try to run default Python. |
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# (This is not saved with the conf.) |
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if _exists python3; then |
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SMTP_PYTHON="python3" |
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elif _exists python; then |
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SMTP_PYTHON="python" |
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else |
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_err "Can't locate Python interpreter; please define SMTP_PYTHON." |
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return 1 |
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fi |
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fi |
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_debug "SMTP_PYTHON" "$SMTP_PYTHON" |
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_debug "Python version" "$($SMTP_PYTHON --version 2>&1)" |
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# Validate other settings: |
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SMTP_FROM="${SMTP_FROM:-$(_readaccountconf_mutable SMTP_FROM)}" |
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if [ -z "$SMTP_FROM" ]; then |
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_err "You must define SMTP_FROM as the sender email address." |
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return 1 |
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fi |
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SMTP_TO="${SMTP_TO:-$(_readaccountconf_mutable SMTP_TO)}" |
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if [ -z "$SMTP_TO" ]; then |
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_err "You must define SMTP_TO as the recipient email address." |
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return 1 |
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fi |
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SMTP_HOST="${SMTP_HOST:-$(_readaccountconf_mutable SMTP_HOST)}" |
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if [ -z "$SMTP_HOST" ]; then |
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_err "You must define SMTP_HOST as the SMTP server hostname." |
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return 1 |
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fi |
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SMTP_PORT="${SMTP_PORT:-$(_readaccountconf_mutable SMTP_PORT)}" |
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SMTP_SECURE="${SMTP_SECURE:-$(_readaccountconf_mutable SMTP_SECURE)}" |
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SMTP_SECURE="${SMTP_SECURE:-none}" |
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case "$SMTP_SECURE" in |
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"none") SMTP_DEFAULT_PORT="25";; |
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"ssl") SMTP_DEFAULT_PORT="465";; |
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"tls") SMTP_DEFAULT_PORT="587";; |
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*) |
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_err "Invalid SMTP_SECURE='$SMTP_SECURE'. It must be 'ssl', 'tls' or 'none'." |
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return 1 |
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;; |
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esac |
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SMTP_USERNAME="${SMTP_USERNAME:-$(_readaccountconf_mutable SMTP_USERNAME)}" |
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SMTP_PASSWORD="${SMTP_PASSWORD:-$(_readaccountconf_mutable SMTP_PASSWORD)}" |
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SMTP_TIMEOUT="${SMTP_TIMEOUT:-$(_readaccountconf_mutable SMTP_TIMEOUT)}" |
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SMTP_DEFAULT_TIMEOUT="15" |
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_saveaccountconf_mutable SMTP_FROM "$SMTP_FROM" |
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_saveaccountconf_mutable SMTP_TO "$SMTP_TO" |
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_saveaccountconf_mutable SMTP_HOST "$SMTP_HOST" |
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_saveaccountconf_mutable SMTP_PORT "$SMTP_PORT" |
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_saveaccountconf_mutable SMTP_SECURE "$SMTP_SECURE" |
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_saveaccountconf_mutable SMTP_USERNAME "$SMTP_USERNAME" |
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_saveaccountconf_mutable SMTP_PASSWORD "$SMTP_PASSWORD" |
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_saveaccountconf_mutable SMTP_TIMEOUT "$SMTP_TIMEOUT" |
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# Send the message: |
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if ! _smtp_send "$@"; then |
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_err "$smtp_send_output" |
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return 1 |
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fi |
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return 0 |
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} |
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# _send subject content statuscode |
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# Send the message via Python using SMTP_* settings |
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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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@ -10,6 +106,91 @@ smtp_send() { |
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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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_debug "SMTP_FROM" "$SMTP_FROM" |
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_debug "SMTP_TO" "$SMTP_TO" |
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_debug "SMTP_HOST" "$SMTP_HOST" |
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_debug "SMTP_PORT" "$SMTP_PORT" |
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_debug "SMTP_DEFAULT_PORT" "$SMTP_DEFAULT_PORT" |
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_debug "SMTP_SECURE" "$SMTP_SECURE" |
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_debug "SMTP_USERNAME" "$SMTP_USERNAME" |
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_secure_debug "SMTP_PASSWORD" "$SMTP_PASSWORD" |
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_debug "SMTP_TIMEOUT" "$SMTP_TIMEOUT" |
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_debug "SMTP_DEFAULT_TIMEOUT" "$SMTP_DEFAULT_TIMEOUT" |
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if [ "${DEBUG:-$DEBUG_LEVEL_NONE}" -ge "$DEBUG_LEVEL_2" ]; then |
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# Output the SMTP server dialogue. (Note this will include SMTP_PASSWORD!) |
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smtp_debug="True" |
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else |
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smtp_debug="" |
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fi |
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# language=Python |
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smtp_send_output="$($SMTP_PYTHON <<EOF |
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# This code is meant to work with either Python 2.7.x or Python 3.4+. |
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try: |
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try: |
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from email.message import EmailMessage |
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except ImportError: |
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from email.mime.text import MIMEText as EmailMessage # Python 2 |
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from smtplib import SMTP, SMTP_SSL, SMTPException |
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from socket import error as SocketError |
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except ImportError as err: |
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print("A required Python standard package is missing. This system may have" |
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" a reduced version of Python unsuitable for sending mail: %s" % err) |
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exit(1) |
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smtp_debug = """$smtp_debug""" == "True" |
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smtp_host = """$SMTP_HOST""" |
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smtp_port = int("""${SMTP_PORT:-$SMTP_DEFAULT_PORT}""") |
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smtp_secure = """$SMTP_SECURE""" |
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username = """$SMTP_USERNAME""" |
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password = """$SMTP_PASSWORD""" |
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timeout=int("""${SMTP_TIMEOUT:-$SMTP_DEFAULT_TIMEOUT}""") # seconds |
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from_email="""$SMTP_FROM""" |
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to_emails="""$SMTP_TO""" # can be comma-separated |
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subject="""$_subject""" |
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content="""$_content""" |
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try: |
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msg = EmailMessage() |
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msg.set_content(content) |
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except (AttributeError, TypeError): |
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# Python 2 MIMEText |
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msg = EmailMessage(content) |
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msg["Subject"] = subject |
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msg["From"] = from_email |
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msg["To"] = to_emails |
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smtp = None |
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try: |
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if smtp_secure == "ssl": |
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smtp = SMTP_SSL(smtp_host, smtp_port, timeout=timeout) |
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else: |
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smtp = SMTP(smtp_host, smtp_port, timeout=timeout) |
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smtp.set_debuglevel(smtp_debug) |
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if smtp_secure == "tls": |
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smtp.starttls() |
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if username or password: |
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smtp.login(username, password) |
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smtp.sendmail(msg["From"], msg["To"].split(","), msg.as_string()) |
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except SMTPException as err: |
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# Output just the error (skip the Python stack trace) for SMTP errors |
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print("Error sending: %r" % err) |
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exit(1) |
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except SocketError as err: |
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print("Error connecting to %s:%d: %r" % (smtp_host, smtp_port, err)) |
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exit(1) |
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finally: |
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if smtp is not None: |
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smtp.quit() |
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EOF |
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)" |
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_ret=$? |
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_debug "smtp_send_output" "$smtp_send_output" |
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return "$_ret" |
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} |
medmunds
4 years ago