Recently we had a requirement where emails were to be delivered to a specific group of users by switching the provider at run time. In short, we are required to deliver the emails by dynamically selecting a provider and not just through a pre-configured provider. Rails provide these Dynamic Delivery Options to override the SMTP settings per mail. But, if you have an existing application with various mailers, applying delivery_method_options will require updating individual mailer action. In this blog, we'll go through the approaches that will work without modifying any existing mailer actions. Setup Assuming that your default

Lately, I was working on a project where I found an issue that emails sent using ActionMailer were not applying css styles to the html elements of the email. On adding style tag in the email view files, I was able to view stylings on thunderbird mail and ymail but still I was unable to view css stylings for emails in gmail. On furthur investigating the issue, I found that gmail requires inline stylings to be applied to the email templates. I found some gems which could fix this problem by converting external css to inline css. I tried the