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Email

Using a transactional email service

Add the following properties if you want to use a service like Mailgun, Sendgrid, or Mandrillapp as your SMTP server.

Configuration

Mandrill

grails.mail.enabled=true
grails.mail.debug=true
grails.mail.from=<from-email>
grails.mail.host=smtp.mandrillapp.com
grails.mail.port=587
grails.mail.username=<username>
grails.mail.password=<password>

Sendgrid

grails.mail.enabled=true
grails.mail.debug=true
grails.mail.from=<from-email>
grails.mail.host=smtp.sendgrid.net
grails.mail.port=587
grails.mail.username=<username>
grails.mail.password=<password>

Gmail

grails.mail.enabled=true
grails.mail.debug=true
grails.mail.from=<from-email>
grails.mail.host=smtp.gmail.com
grails.mail.port=465
grails.mail.username=<your-username>
grails.mail.password=<password-generated-from-google-accounts>
grails.mail.props=["mail.smtp.auth":"true", "mail.smtp.socketFactory.port":"465", "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory", "mail.smtp.socketFactory.fallback":"false"]

NOTE: I have not been able to able to get the Gmail configuration to work, but I'm sure someone with more time and intelligence will have no trouble figuring it out.

Install postfix

https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-14-04

Configuration

The default email configuration properties.

grails.mail.enabled = true          
grails.mail.debug = true
grails.mail.from = info@openboxes.com
grails.mail.prefix = [OpenBoxes]
grails.mail.host = localhost
grails.mail.port = 25
# These are commented out on purpose.
#grails.mail.username = <username>
#grails.mail.password = <password>