in log4j-jakarta-smtp/src/main/java/org/apache/logging/log4j/smtp/appender/SmtpManager.java [254:264]
protected void writeBuffer(
final LogEvent[] priorEvents, final LogEvent appendEvent, final Layout layout, final OutputStream out)
throws IOException {
for (final LogEvent priorEvent : priorEvents) {
final byte[] bytes = layout.toByteArray(priorEvent);
out.write(bytes);
}
final byte[] bytes = layout.toByteArray(appendEvent);
out.write(bytes);
}