I'm looking to do some quick testing for some transactional email templates for an app I'm working on. I'm not ready to commit to a monthly plan as it'll be several months before we're writing new transactional emails but I'm having trouble finding one-off services I can use.
I did try out inboxinspector.com but I'm not sure how reliable it is.
Just curious to see what all of you in DN Land are using. Thanks!