Comments on: Using GMail with a Log4j SMTP Appender in Grails

By: Using GMail with a Log4j SMTP Appender in Grails « Lubos Groovy and Grails Blog

Thu, 04 Feb 2010 18:51:23 +0000

[...] GMail with a Log4j SMTP Appender in Grails Very useful blog entry about Using GMail with a Log4j SMTP Appender in Grails containing log4j SMTP Appender [...]

By: Scott Davis

Scott Davis — Thu, 04 Feb 2010 18:48:01 +0000

Burt – strong work! This works exactly as advertised. Thx. (BTW, my new nickname is now ‘plaintive wail’… grin)

By: Burt

Burt — Thu, 04 Feb 2010 16:03:17 +0000

@Tom I agree, there are lots of things that can go wrong. A few months ago we were running a batch process that got stuck and I ended up with over 2000 emails in my inbox before we killed the process. A custom appender that queues and sends asynchronously and potentially batches messaages would have helped a lot there and could address server availability issues too.

By: Tom

Tom — Thu, 04 Feb 2010 15:29:14 +0000

Careful. If your SMTP server goes down, you may run into a thread deadlock scenario. This happened to me last year. My SMTP server went down and all threads that used log4j locked up because the one thread that tried to send an email was blocking them.

By: Wolfgang

Wolfgang — Thu, 04 Feb 2010 09:34:54 +0000

Hi Burt,

nice trick!

FYI: some parts of your code example (e.g. ‘appender new SMTPAppender’) are not visible in my browser (Safari 4 on OSX Snow Leopard), Firefox shows them without problem. Maybe a rendering problem or text and bgcolor are too similar to white…