This gem allows you to configure your smtp settings for mail and action mailer using a url. The intention is to keep those settings out of your code and allow easily setting them with an environment variable.

Add to your Gemfile:

gem "smtp_url"

If you are in Rails it will automatically setup your email settings if you have the SMTP_URL enviroment variable set.

Use a SMTP_URL that looks like so:

smtp://<user>:<password>@<hostname>:<port>/?<options>

Options is a query string of key value pairs and is used for setting both the domain and authentication options. For example:

smtp://user:secret@mailserver:587/?domain=test.com&authentication=digest

Only hostname, is required. Everything else is optional. It will default to port 25 if it is not specified.

Set SMTP_URL in your server setup like so:

export SMTP_URL=smtp://user:secret@mailserver:587/?domain=test.com

Can be very useful in development when paired with something like Mailcatcher:

export SMTP_URL=smtp://localhost:1025

SmtpURL is MIT Licensed

Copyright (C) 2012 by Daniel Farrell

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.