Drupal module to retry failed emails -

I'm trying to find an existing Drupal module to fit the bill: Basically, when sending an email If I fail to save the email, and automatically try to send the email again later, I am using SMTP module to relay the email through an SMTP Gateway (required by hosting provider), but Once in a while Kshn is rejected - probably too busy gateway.

Check the module's main purpose is to send mails in batches on the cron, but this' failure But also retry 'option. If your cron runs adequately, then it may be OK for your case. Otherwise it will work as an example to implement your own retrain mechanism.