Email Delivery and Bounce - Zoho Desk Knowledgebase

Understanding Email Delivery and Bounce

When you need to get an important message to a customer, one of the fastest ways to do it is by email. Despite several new and modern communication techniques, email stays the most preferred channel for customers when they need help from a business.

However, what is often overlooked, is to ensure seamless delivery of emails to your customers. We've all been there. You draft an email ticket, send away, and then — when you check your ticket — you see that it “bounced.” Or worse you send out instant notifications that never reach your customers.

In this article, let's talk about the following:
  • What are bounces and why do they happen?
  • What is the impact of bounce?
  • What is your way out of a bounce bounty?

What are Bounces?
Bounces are those email addresses to which Zoho Desk could not deliver your email. They usually appear as a new conversation in your ticket. But there's no way to identify bounces in notification emails unless you take a closer look—at ticket history. There are two kinds of bounce email:
  • Hard bounce
  • Soft bounce

Hard Bounce
A hard bounce is that email address to which an email is permanently undeliverable by Zoho Desk for different reasons. Some of them are as follows:
  • The recipient email address does not exist.
  • The domain name does not exist.
  • The mail server of the recipient has blocked delivery.

Soft Bounce
A soft bounce is a temporary failure, and there is a chance that the recipient will receive the email from Zoho Desk eventually. It can happen when:
  • Your email response is too large.
  • Customer's inbox is full.
  • The recipient's server is down or offline.

What is the impact of bounce?
Zoho Desk takes bounces seriously as they affect not only the delivery of your emails but also the reputation of the email service used to send the emails, in this case, Zoho. We monitor for accounts that continually send emails to invalid contacts and block the email addresses from time to time. If you can't send emails to a contact, it means that one of the following factors impact your account: 
  • When an email has hard bounced, it will be blocked by Zoho Desk permanently. 
  • When an email has soft bounced, you will still be allowed to send further emails upto five times. If at the end of the fifth consecutive time, Zoho Desk is not able to deliver the email, the soft bounce gets converted as a hard bounce, and so the email address will be blocked permanently.

What is your way out of a bounce bounty?
It can be frustrating when you send out a ticket reply or notification email, and it does not get delivered. Maybe that one of the bounce mitigation factors has kicked in for your account. But, not all bounces are permanent.

An email address that has been marked as a "hard bounce" can be removed from the blocked list. If you're convinced that the contact's email address is valid, write to Zoho Desk Support at support@zohodesk.com.

If your account reaches too high of a bounce rate, your email sending can be blocked without warning. This block applies only to your email notifications and not for ticket responses. If you find yourself in this situation, write to Zoho Desk Support at support@zohodesk.com. We will do what is required to whitelist Zoho Desk.


      Create. Review. Publish.

      Write, edit, collaborate on, and publish documents to different content management platforms.

      Get Started Now


        Access your files securely from anywhere

          Zoho CRM Training Programs

          Learn how to use the best tools for sales force automation and better customer engagement from Zoho's implementation specialists.

          Zoho CRM Training
            Redefine the way you work
            with Zoho Workplace

              Zoho DataPrep Personalized Demo

              If you'd like a personalized walk-through of our data preparation tool, please request a demo and we'll be happy to show you how to get the best out of Zoho DataPrep.

              Zoho CRM Training

                Create, share, and deliver

                beautiful slides from anywhere.

                Get Started Now


                  Zoho Sign now offers specialized one-on-one training for both administrators and developers.

                  BOOK A SESSION







                              Quick LinksWorkflow AutomationData Collection
                              Web FormsEnterpriseOnline Data Collection Tool
                              Embeddable FormsBankingBegin Data Collection
                              Interactive FormsWorkplaceData Collection App
                              CRM FormsCustomer ServiceAccessible Forms
                              Digital FormsMarketingForms for Small Business
                              HTML FormsEducationForms for Enterprise
                              Contact FormsE-commerceForms for any business
                              Lead Generation FormsHealthcareForms for Startups
                              Wordpress FormsCustomer onboardingForms for Small Business
                              No Code FormsConstructionRSVP tool for holidays
                              Free FormsTravelFeatures for Order Forms
                              Prefill FormsNon-Profit

                              Intake FormsLegal
                              Mobile App
                              Form DesignerHR
                              Mobile Forms
                              Card FormsFoodOffline Forms
                              Assign FormsPhotographyMobile Forms Features
                              Translate FormsReal EstateKiosk in Mobile Forms
                              Electronic Forms
                              Drag & drop form builder

                              Notification Emails for FormsAlternativesSecurity & Compliance
                              Holiday FormsGoogle Forms alternative GDPR
                              Form to PDFJotform alternativeHIPAA Forms
                              Email FormsFormstack alternativeEncrypted Forms

                              Wufoo alternativeSecure Forms

                              WCAG

                                      Create. Review. Publish.

                                      Write, edit, collaborate on, and publish documents to different content management platforms.

                                      Get Started Now







                                                        You are currently viewing the help pages of Qntrl’s earlier version. Click here to view our latest version—Qntrl 3.0's help articles.




                                                            Manage your brands on social media


                                                              • Desk Community Learning Series


                                                              • Digest


                                                              • Functions


                                                              • Meetups


                                                              • Kbase


                                                              • Resources


                                                              • Glossary


                                                              • Desk Marketplace


                                                              • MVP Corner


                                                              • Word of the Day


                                                              • Ask the Experts


                                                                Zoho Sheet Resources

                                                                 

                                                                    Zoho Forms Resources


                                                                      Secure your business
                                                                      communication with Zoho Mail


                                                                      Mail on the move with
                                                                      Zoho Mail mobile application

                                                                        Stay on top of your schedule
                                                                        at all times


                                                                        Carry your calendar with you
                                                                        Anytime, anywhere




                                                                              Zoho Sign Resources

                                                                                Sign, Paperless!

                                                                                Sign and send business documents on the go!

                                                                                Get Started Now




                                                                                        Zoho TeamInbox Resources





                                                                                                  Zoho DataPrep Demo

                                                                                                  Get a personalized demo or POC

                                                                                                  REGISTER NOW


                                                                                                    Design. Discuss. Deliver.

                                                                                                    Create visually engaging stories with Zoho Show.

                                                                                                    Get Started Now








                                                                                                                        • Related Articles

                                                                                                                        • Setting up your Email Channel

                                                                                                                          Emails are the most widely used mode of communication for your customers to submit tickets to your Zoho Desk. The emails received from your customers are converted into tickets and assigned a unique ticket ID. All you need to do is to forward the ...
                                                                                                                        • Configuring SPF and DKIM for your Email Domain

                                                                                                                          SPF and DKIM are fundamental email authentication protocols that can help protect email senders and recipients from spam, phishing, and spoofing. SPF allows your recipients to know whether emails from your domain, are in fact sent by you while DKIM ...
                                                                                                                        • FAQs: Email

                                                                                                                          Can I clone email templates across departments? Creating email templates for multiple departments in Zoho Desk allows you to streamline your communication with customers and agents by providing preconfigured messages tailored to specific needs. ...
                                                                                                                        • Sending Ticket Details as Email

                                                                                                                          Generally, when customers lodge their queries through a phone call, the agents create a ticket to record in the Tickets module. It helps them track and monitor the status and add a resolution accordingly. The Send as Email option in the mobile app ...
                                                                                                                        • Managing Email Templates

                                                                                                                          Effective communication is important for businesses. Zoho Desk provides a couple of predefined email templates that can be used to send Email notifications to your customers and agents. For example, you can use the predefined Email Template to send ...
                                                                                                                          Wherever you are is as good as
                                                                                                                          your workplace

                                                                                                                            Resources

                                                                                                                            Videos

                                                                                                                            Watch comprehensive videos on features and other important topics that will help you master Zoho CRM.



                                                                                                                            eBooks

                                                                                                                            Download free eBooks and access a range of topics to get deeper insight on successfully using Zoho CRM.



                                                                                                                            Webinars

                                                                                                                            Sign up for our webinars and learn the Zoho CRM basics, from customization to sales force automation and more.



                                                                                                                            CRM Tips

                                                                                                                            Make the most of Zoho CRM with these useful tips.



                                                                                                                              Zoho Show Resources