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@@ -224,9 +224,7 @@ _smtp_raw_message() {
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echo "From: $SMTP_FROM"
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echo "To: $SMTP_TO"
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echo "Subject: $(_mime_encoded_word "$SMTP_SUBJECT")"
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- if _exists date; then
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- echo "Date: $(date +'%a, %-d %b %Y %H:%M:%S %z')"
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- fi
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+ echo "Date: $(_rfc2822_date)"
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echo "Content-Type: text/plain; charset=utf-8"
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echo "X-Mailer: $SMTP_X_MAILER"
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echo
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@@ -248,6 +246,19 @@ _mime_encoded_word() {
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fi
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}
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+# Output current date in RFC-2822 Section 3.3 format as required in email headers
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+# (e.g., "Mon, 15 Feb 2021 14:22:01 -0800")
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+_rfc2822_date() {
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+ # Notes:
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+ # - this is deliberately not UTC, because it "SHOULD express local time" per spec
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+ # - the spec requires weekday and month in the C locale (English), not localized
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+ # - this date format specifier has been tested on Linux, Mac, Solaris and FreeBSD
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+ _old_lc_time="$LC_TIME"
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+ LC_TIME=C
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+ date +'%a, %-d %b %Y %H:%M:%S %z'
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+ LC_TIME="$_old_lc_time"
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+}
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+
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# Simple check for display name in an email address (< > or ")
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# email
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_email_has_display_name() {
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medmunds