Troubleshooting
Why Can't I Connect After a Recent Security Update?
Why Can't I Connect After a Recent Security Update? Why some devices lose email access after we renew our security certificate, and how to fix it. From time to time, we update the SSL certificate that secures and authenticates our mail servers — this ...
Why Isn't My Email Syncing Across All My Devices?
Why Isn't My Email Syncing Across All My Devices? Understanding IMAP vs. POP, and how to check which one your device is using. If a message you read (or deleted) on one device still shows as unread on another — or mail disappears from your phone ...
My Mailbox Was Hacked — What Happens Next?
My Mailbox Was Hacked — What Happens Next? What to do right away, and how we help you secure and restore your account. If you notice unusual activity on your account — sent messages you didn't write, contacts saying they got strange emails from you, ...
My Email Bounced Back — What Do I Do?
My Email Bounced Back — What Do I Do? Understanding "Undelivered Mail" notices and how to fix the most common causes. If you sent a message and got an automatic reply saying it couldn't be delivered (often titled “Undelivered Mail Returned to Sender” ...
My Email Isn't Receiving — Troubleshooting Checklist
My Email Isn’t Receiving A step-by-step checklist to help you find missing mail. If you can send mail but messages you’re expecting aren’t showing up, the cause is almost always one of a few common issues. This article walks you through them, one ...
My Email Isn't Sending — Troubleshooting Checklist
My Email Isn’t Sending — Troubleshooting Checklist If you can receive mail but messages won’t send — or they sit in your Outbox forever — the cause is almost always one of a handful of common issues. Work through this checklist in order. Most ...
Popular Articles
Outlook Classic - How to Connect Your Email Account via IMAP
Overview This guide walks you through adding your email account to the classic Microsoft Outlook desktop app (Outlook 2016, 2019, 2021, and Microsoft 365 Classic) using IMAP. IMAP keeps your messages synchronized between the server and all your ...
Mozilla Thunderbird - How to Connect Your Email Account via IMAP
Overview This guide walks you through adding your email account to Mozilla Thunderbird using IMAP. IMAP keeps your messages synchronized between the server and all your devices, so anything you read, send, or file in Thunderbird is reflected ...
iPhone or iPad - How to Connect Your Email Account via IMAP
Overview This guide walks you through adding your email account to the built-in Mail app on an iPhone or iPad using IMAP. IMAP keeps your messages synchronized between the server and all your devices, so anything you read, send, or file on your ...
Android (Gmail App or Samsung Email) - How to Connect Your Email Account via IMAP
Overview This guide walks you through adding your email account to an Android phone or tablet using IMAP. IMAP keeps your messages synchronized between the server and all your devices, so anything you read, send, or file on your Android device is ...
New Outlook for Windows - How to Connect Your Email Account via IMAP
Overview This guide walks you through adding your email account to the new Outlook for Windows using IMAP. IMAP keeps your messages synchronized between the server and all your devices, so anything you read, send, or file in Outlook is reflected ...