Authentication Failure when adding POP3 accounts

Authentication Failure when adding POP3 accounts

Hi everyone,

I am a new user currently migrating from Gmail to Zoho Mail. I decided to make the switch following Google's decision to discontinue POP3 fetching. I previously used Gmail as my primary mail hub, and Zoho seems like the perfect alternative for this setup.

However, I am having trouble adding my external email accounts. When I enter the POP server, username, and password—using the exact same credentials I used in Gmail—I receive an "Authentication Failure" error.

I have double-checked my credentials, and I am certain they are correct. To be sure, I successfully logged into my hosting provider's webmail using the same username and password.

Is there a specific setting I might be missing in Zoho to prevent this error? Any help would be greatly appreciated.

Thank you!

Simon

      Zoho Campaigns Resources


        • Desk Community Learning Series


        • Digest


        • Functions


        • Meetups


        • Kbase


        • Resources


        • Glossary


        • Desk Marketplace


        • MVP Corner


        • Word of the Day


        • Ask the Experts


          • Sticky Posts

          • Pocket from Mozilla is closing shop. Don’t lose your favorites . Move them to Zoho Mail Bookmarks now! 📥🔖

            The end of Pocket shouldn't mean the end of your important links and content. Easily import them into Zoho Mail's Bookmarks and continue right where you left off. You can bring over your entire Saves, Collections, and tags just the way they are. Bookmarks
          • Zoho Mail POP & IMAP Server Details

            Hello all! We have been receiving a number of requests regarding the errors while configuring or using Zoho Mail account in POP/ IMAP clients. The server details vary based on your account type and the Datacenter in which your account is setup. Ensure
          • Workplace - Zoholics Europe Customer Awards

            Dear Zoho Mail Community! 📣 We're excited to announce that at this year's Zoholics events across Europe, we're holding customer awards for the first time ever! Workplace - Zoholics Europe Customer Awards This is your chance to shout about the amazing
          • Important update on Group Management | Zoho Mail

            Dear Zoho Mail Community, This post is to inform you all of the following updates on the Group Management in Zoho Mail. Group Member Addition: If a group member is added to an organization group in a Zoho Application, the member will be automatically
          • Mastering email etiquette and best practices to follow in Zoho Mail

            Hello Zoho Mail Community, We’re thrilled to invite you all to our upcoming webinar: Mastering email etiquette and best practices to follow in Zoho Mail. Join our live webinar for expert etiquette tips to enhance your professionalism and elevate your

          Zoho CRM Plus Resources

            Zoho Books Resources


              Zoho Subscriptions Resources

                Zoho Projects Resources


                  Zoho Sprints Resources


                    Zoho Orchestly Resources


                      Zoho Creator Resources


                        Zoho WorkDrive Resources



                          Zoho CRM Resources

                          • CRM Community Learning Series

                            CRM Community Learning Series


                          • Tips

                            Tips

                          • Functions

                            Functions

                          • Meetups

                            Meetups

                          • Kbase

                            Kbase

                          • Resources

                            Resources

                          • Digest

                            Digest

                          • CRM Marketplace

                            CRM Marketplace

                          • MVP Corner

                            MVP Corner




                            Zoho Writer Writer

                            Get Started. Write Away!

                            Writer is a powerful online word processor, designed for collaborative work.

                              Zoho CRM コンテンツ




                                ご検討中の方

                                  • Recent Topics

                                  • Allow selection of select inactive users in User data fields

                                    Hello, We sometimes need to select a previous employee that has an inactive account in the User data field. For example, when doing database cleanup and indicating actions are done by a certain employee that weren't filled out when they were part of the
                                  • [Webinar] Top 10 Most Used Zoho Analytics Features in 2025

                                    Zoho Analytics has evolved significantly over the past year. Discover the most widely adopted features in Zoho Analytics in 2025, based on real customer usage patterns, best practices, and high-impact use cases. Learn how leading teams are turning data
                                  • How Does Knowledge Base Search and Article Recommendation Work?

                                    Hello, I would like to understand how the Knowledge Base search engine works. Specifically, does it search based on: The article title only? The full article content? Both, the article and the content? Keywords? Tags? Also, how does the system determine
                                  • Super Admin Logging in as another User

                                    How can a Super Admin login as another user. For example, I have a sales rep that is having issues with their Accounts and I want to view their Zoho Account with out having to do a GTM and sharing screens. Moderation Update (8th Aug 2025): We are working
                                  • Do buttons and vba msgbox work on mobile, specifially the iPhone zoho sheets app?

                                    In Zoho sheets on the web, I inserted a button and assigned a VBA macro to it. It pops up a msgbox with some text. When I go onto the iPhone mobile zoho sheets app, the button is there. When I click on that button, the spinning asterisk appears for a
                                  • [Webinar] Solving business challenges- Handling the challenge of transitioning to Zoho Writer from legacy tools

                                    Moving to Zoho Writer is a great way to consolidate your business tools and become more agile. With multiple accessibility modes, no-code automation, and extensive integration with business apps and content platforms, Zoho Writer helps solve your organization's
                                  • How exactly does "Reply assistance" work in Zoho Desk? What context is sent to the LLM?

                                    Hi, Im trying to better understand the technical behavior of the feature "Reply assistance" in Zoho Desk, and I couldn’t find detailed information in the current documentation. Specifically, I have questions about what data is actually being sent to the
                                  • How can I effectively manage a website with your help?

                                    I’m wondering if it’s possible to develop a custom website with specific features using Zoho as an alternative platform. My goal is to create a website similar to https://tmsim.ph, with the same kind of functionality and user experience. I would truly
                                  • Introducing the Yes/No field: Binary decisions made beautiful

                                    Greetings, form architects! What would you do when you need a simple yes/no answer on your form? Normally, you add a Radio field. Type Yes. Type No. Until now. The new Yes/No field is purpose-built for binary decisions. It is preconfigured, visually consistent,
                                  • Move email between inboxes?

                                    Is it possible to move emails from one team inbox to another? We would like to be able to have a single "catch-all" inbox for incoming requests, and then move the email to the appropriate department inbox. I was hoping we would be able to accomplish this
                                  • The power of workflows in Zoho Marketing Automation - Video Webinar

                                    In this Zoho Marketing Automation video webinar, our experts walk you through: Why you may want to create marketing workflows How to create marketing workflows Use Zoho CRM data and apply workflows to automate your marketing strategy How workflows can
                                  • Offer already made- but I withdrew it

                                    I made an offer letter, but made a mistake on it. I withdrew the offer but now I can't recreate the correct offer. Zoho keeps saying that "A same offer has already been made". I look in the "offers" and there are NO offers (this is the first time I've
                                  • Zoho CRM's sales trend and sales follow-up trend dashboards are now customizable

                                    Dear Customers, We're here with good news! Sales trend and sales follow-up trend are two system-defined dashboards that help you understand trends and anomalies in your sales outreach and conversion efforts. They use Zia's intelligence to identify patterns
                                  • Task list flag Internal/External for all phases

                                    Phases are commonly used in projects to note milestones in the progression of a project, while task lists can be used to group different types of tasks together. It makes sense to be able to define a task list as either internal or external however the
                                  • Introducing Rule-Based AI Coding Assistants for Zoho Finance Widgets

                                    Hello customers, We’ve introduced rule-based AI coding assistants to speed up Zoho Finance widget development. You can try them out in Cursor AI and GitHub Copilot. This helps you build widgets quickly using simple prompts, while ensuring the generated
                                  • Marketing Tip #21: Create an About Us page

                                    People don’t just buy products, they buy from brands they trust. An About Us page helps customers understand who you are, what you stand for, and why your business exists. It adds a human touch to your store and reassures shoppers that there’s a real
                                  • Zobot to handle single choice menu when dynamic list content is more than 10 items

                                    Whatsapp supports maximum of only 10 items for its single choice menu. When we need to show a dynamic list with content more than 10, this could be challenging. We essentially need to add a next and previous buton here in order to make it functional.
                                  • Add the ability to Hide Pages in Page Rules

                                    Hi, We have Field Rules to show and hide fields and we have page Rules, but we can't hide a page in Page Rules so it isn't completed before the previous page (And then have the Deny Rules to prevent submitting without both pages completed), we can only
                                  • Column letter from number

                                    Hello, I am trying to select a cell and i have the column number. How do i do this or is there a way of getting the letter from the number? Thank you
                                  • Composite Product (kit) - Dynamic Pricing

                                    I am setting up Composite Products for item kits that I sell. I also sell the items from the kit individually. Problem is when pricing changes on an individual part, the Composite Product price does not change meaning when the cost of item # 2 in the
                                  • View Answer Bot conversations?

                                    We are trialing Zia and are experimenting with Answer Bot on our knowledge base. So far so good! Management asks me if it is possible to view Answer Bot conversations, the purpose being to look over its shoulder and confirm that it is working as des
                                  • Train Zia answer bot on only part of Knowledge Base?

                                    We are trialing Zia answer bot and hope to use it on the knowledge base to help our users find the information they are looking for. I have found how to train Zia on the entirety of our knowledge base. But is there a way to train it on only certain categories
                                  • Smarter holiday planning with yearly-specific Holiday Lists

                                    Hello everyone! Managing holidays and business hours is now easier and more efficient. Holiday Lists now support holidays that fall on different dates every year, while business hours now supports more than one holiday list. This helps businesses manage
                                  • Temporary Outage in Zoho Cliq Affecting US Users – July 23, 2025

                                    We experienced a service disruption in Zoho Cliq that impacted core functionality for users in the US region. The issue occurred between Jul 23, 2025, 06:54:00 PM IST and 07:13:13 PM IST, lasting approximately 19 minutes. To restore service stability,
                                  • How Do Mutliple Sales People Prospect in the "LEADS" module without calling the same leads?

                                    We have 4 sales reps and the Leads module does not have real time intuitive knowlodge to make the sales rteps dont call the same people at the same time. How can we crate a fluent prospecting sytem where the salres reps can go out bound without calling
                                  • ERROR CODE :550 - 550 5.1.1 Invalid email recipients

                                    This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. mustafa.ashraf@techlink-eg.net, ERROR CODE :550 - 550 5.1.1 Invalid email recipients
                                  • How to Create a Fixed Sliding Time Window (D-45 to D-15) in Zoho Analytics ?

                                    Hello, I would like to create a report in Zoho Analytics based on a sliding time window between D-45 and D-15, with a fixed snapshot of that specific period. The data displayed should strictly reflect activity recorded between D-45 and D-15 only, without
                                  • Wie veröffentliche ich ein PDF Datei?

                                    Hallo! Wie veröffentliche ich PDF Datein ich habe ein PDF Datei und den sieht ihr im Upload ich möchte ihn veröffentlichen wie? Mit Freundlichen Grüßen, Herr Bahaa Addin Chkirid
                                  • 🚀 WorkDrive 6.0 (Phase 1): Empowering Teams with Content Intelligence, Automation, Accessibility, and Control

                                    Hello, everyone! WorkDrive continues to evolve from a robust file management solution into an intelligent, secure, and connected content collaboration platform for modern businesses. Our goal remains unchanged: to simplify teamwork, strengthen data security,
                                  • Zoho Campaigns: An Outstanding Email Marketing Tool

                                    Introducing Zoho Campaigns! A product designed by Zoho, the Zoho Campaigns is made to create, deliver, and manage integrated email campaigns that can help in boosting the sales of a company and its customer base. Zoho Campaigns is actually an email marketing
                                  • Zoho Creator Developer Console | Improved Distribution and Lifecycle Management for apps

                                    Hello everyone, We're excited to introduce new enhancements now in the Zoho Creator Developer Console. These updates strengthen private app distribution through licensing controls and extend environment support across all installed apps, helping teams
                                  • Anchor Links in Dashboards

                                    Hello,  Our dashboards frequently have multiple sections that would be more easily skipped between using anchor links. Please consider adding an anchor link feature to the text widget? This could be done by adding an anchor link option to the text widget next to the "remove" option (see screenshot). The option would assign an ID to the <div> containing the text widget in the live dashboard. Then, the chosen ID could be linked using a traditional <a href="#link_id"> in the html section of the text
                                  • Sync images with Shopify/Cart

                                    Hello, sync images with shopify or other cart, it cuts out the double work of having to upload to shopify/cart and zoho. Thanks
                                  • Is it Possible to Modify Standard Report Urls

                                    Is there a way to permanently modify standard report Urls? Use case: Suppose I have a Products report. Showing list as timeline, calendar, or kanban doesn't make sense. Want to hide that from users by adding #Report:Products?zc_ShowAs=false&zc_Print=false
                                  • Assessment Answered - Automation (Related List)

                                    Hello everyone, We have linked a candidate assessment to our job posting. When someone applies, they are required to answer all the assessment questions. However, some candidates submit their applications without completing the questions. In such cases,
                                  • Zoho calendar not working in browser

                                    Hello, I am new to Zoho. I have two accounts for two separate businesses. In one of them, calendar loads in a browser no problem. However, if I use this account (sairfeetmusic.co.uk) calendar does not load. I also cannot add it to my Thunderbird Lightening
                                  • External User onboarding for zoho connect is not really intuitive.

                                    So the external user is sent an invite, which has a button that directs them to login to zoho to view the invite, but if they don't have a zoho account, they cannot access that invite, which seems kinda silly, as there is not real way on for them to create
                                  • Having trouble fetching contents of Zoho Connect Feeds using the API, requesting alternative API documentation.

                                    I'm trying to retrieve feed/post data from Zoho Connect using the API but facing challenges with the current documentation. What I've tried: OAuth authentication is working correctly (getting 200 OK responses) Tested multiple endpoints: /pulse/nativeapi/v2/feeds,
                                  • How to upload file to Connect using API?

                                    Hi there. I looked at the API documentation and nowhere did it mention how to use the API method to upload a file even though it is mentioned that it is possible to be done so. Please help.
                                  • Select the task view on the board in the Zoho Connect iPhone app

                                    Hello. How do I select the task view on the board in the Zoho Connect iPhone app? The Android app has this functionality.
                                  • Next Page