Send email to multiple recipients in Rails with ActionMailer

readme.md

Send email to multiple recipients

Send multiple emails to different recipients.

Mailer class

# app/mailers/notify_mailer.rb

class NotifyMailer < ApplicationMailer
  default from: 'notify@mysite.com'

  def self.send_request(row)
    emails = ['email1@mysite.com', 'email2@another.com']
    
    emails.each do |email|
      new_request(email,row).deliver_now
      # or
      #new_request(email,row).deliver_later
      
    end
  end

  def new_request(email, row)
    @item = row

    mail(to: email, subject: 'New request')

  end
end

Send email

row = Request.find(1)
NotifyMailer.send_request(row)

This will send several separate emails.

Email content

# app/views/notify_mailer/new_request.html.erb

<br>
New callback request
<br>
phone: <%=@item.phone %><br>
name: <%=@item.name %><br>
email: <%=@item.email %><br>
notes: <%=@item.notes %><br>
date: <%=@item.created_at %><br>

# app/views/notify_mailer/new_request.txt.erb

New callback request
===============================================
<br>
phone: <%=@item.phone %><br>
name: <%=@item.name %><br>
email: <%=@item.email %><br>
notes: <%=@item.notes %><br>
date: <%=@item.created_at %><br>

WRONG WAY

if you have this

class NotifyMailer < ApplicationMailer
  default from: 'notify@mysite.com'

  def new_request(email, row)
    @item = row
   
    emails = ['email1@mysite.com', 'email2@another.com']
    
    emails.each do |email|
      mail(to: email, subject: 'New request : ')
    end
  end

And you run

row = Request.find(1)
NotifyMailer.new_request(row).deliver_now

This will try to send ONE email containing all emails for every recipient.

This is WRONG SOLUTION.