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Email Not Working? How to Fix Common Email Problems

October 6, 2026 · LuxuriousComputers Repair, Marion OH

Your email suddenly stops working and panic sets in. Bills, work messages, password resets, shipping confirmations — we rely on email for practically everything. The good news: most email problems have straightforward fixes you can try yourself before calling for help.

Whether you use Outlook, Gmail, Yahoo Mail, or your internet provider's email, this guide covers the most common email issues and how to solve them.

Email Not Sending or Receiving

1. Check Your Internet Connection

It sounds obvious, but start here. Open a web browser and try loading a website. If the page won't load, your problem isn't email — it's your internet connection. Restart your router, wait 60 seconds, and try again. If you're on WiFi, try moving closer to the router or switching to a wired connection.

2. Check the Email Provider's Status

Gmail, Outlook.com, and Yahoo all experience outages. Before you spend an hour troubleshooting, check if the service itself is down. Search "Is Gmail down" or visit downdetector.com to see if other people are reporting the same issue. If the provider is having problems, there's nothing to fix on your end — just wait it out.

3. Clear Your Outbox

If you sent a message with a large attachment (over 25 MB for most providers), it can get stuck in your Outbox and block every email behind it. In Outlook: go to the Outbox folder, delete the stuck message, and try sending again. In Gmail, check your Sent folder — if the message shows a red error icon, click it for details.

Password and Login Problems

4. Wrong Password After a Change

If you recently changed your email password on the web, every device and app using that account needs the new password too. This is the #1 reason email suddenly stops working on phones and desktop apps. Check your phone's mail app, Outlook on your computer, and any other device where you access this email account.

5. App Passwords and Two-Factor Authentication

If you turned on two-factor authentication (2FA) for your Gmail or Microsoft account, older email apps can't use your regular password anymore. You'll need to generate an app password — a special 16-character code that lets the app sign in without a 2FA prompt.

• Gmail: Go to myaccount.google.com → Security → 2-Step Verification → App passwords. Generate a password and paste it into your email app
• Microsoft/Outlook: Go to account.microsoft.com → Security → Advanced security options → App passwords

6. Account Compromised

If your password doesn't work and you didn't change it, your account may have been hacked. Someone may have changed your password. Use the provider's account recovery process immediately. After regaining access, change your password to something unique, enable two-factor authentication, and check your sent folder and forwarding rules — hackers often set up forwarding to silently copy all your incoming mail.

IMAP, POP, and SMTP Settings

7. Setting Up Email in Outlook or a Mail App

If you're adding an email account to Outlook, Thunderbird, Apple Mail, or your phone's mail app, the settings need to be exact. One wrong port number or server name and it won't connect. Here are the most common configurations:

• Gmail IMAP: Server: imap.gmail.com, Port: 993, SSL: Yes. SMTP: smtp.gmail.com, Port: 587, TLS: Yes
• Outlook.com/Hotmail: IMAP: outlook.office365.com, Port: 993, SSL: Yes. SMTP: smtp.office365.com, Port: 587, TLS: Yes
• Yahoo: IMAP: imap.mail.yahoo.com, Port: 993, SSL: Yes. SMTP: smtp.mail.yahoo.com, Port: 465, SSL: Yes

8. Your ISP or Business Email Settings

If you have email through your internet provider (like Spectrum, AT&T, or a local ISP) or a business domain, the server settings are different for every provider. Check your provider's support page or call them for the correct incoming/outgoing server addresses, port numbers, and security settings. We see a lot of these at our shop — ISP email settings are often the hardest to get right because each provider is different.

Mailbox Full or Over Quota

9. Your Email Storage Is Full

Every email account has a storage limit. When you hit it, new emails bounce back to the sender and you can't send anything either. Free Gmail accounts get 15 GB (shared with Google Drive and Google Photos). Free Outlook.com accounts get 15 GB. Yahoo gives you 1 TB, so running out is less common.

To free up space:

• Search for emails with large attachments: in Gmail, type has:attachment larger:10M to find messages with attachments over 10 MB
• Empty your Trash and Spam folders — they count against your quota
• Delete old newsletters and promotional emails in bulk
• In Gmail, check Google Drive and Photos too — they share the same 15 GB pool

Emails Going to Spam

10. Your Emails Are Landing in Spam

If people tell you they never got your email, it probably landed in their spam folder. Common reasons: your email address is new, you're sending to a lot of people at once, your message contains too many links, or your email domain doesn't have proper authentication records (SPF/DKIM/DMARC).

If you're not receiving emails you expect, check your own spam/junk folder. In Gmail, also check the Promotions and Updates tabs — important messages end up there surprisingly often.

11. Whitelisting Important Senders

To make sure emails from a specific sender never go to spam:

• Gmail: Open the email, click the three dots, select "Filter messages like these" → "Never send it to Spam"
• Outlook: Right-click the message → Junk → Never Block Sender
• Yahoo: Add the sender's address to your Contacts — Yahoo rarely spams known contacts

Outlook-Specific Problems

12. Outlook Won't Open or Keeps Crashing

If Outlook itself won't start, try running it in Safe Mode: press Windows + R, type outlook.exe /safe, and press Enter. If it opens in Safe Mode, the problem is usually a bad add-in. Go to File → Options → Add-ins → Manage COM Add-ins → disable them all, then re-enable one at a time to find the culprit.

13. Repair Your Outlook Profile

A corrupted Outlook profile can cause all kinds of odd behavior — emails not syncing, search not working, calendar items disappearing. Go to Control Panel → Mail → Show Profiles → Add to create a new profile. If the new profile works fine, your old profile was corrupted. You can also try the built-in repair: Account Settings → Email tab → select your account → Repair.

Gmail-Specific Problems

14. Gmail Not Loading or Running Slowly

If Gmail loads slowly or not at all in your browser, try these steps in order:

• Clear your browser cache: Ctrl + Shift + Delete → clear cached images and files
• Disable browser extensions: ad blockers and privacy extensions sometimes interfere with Gmail
• Try a different browser: if Gmail works in Edge but not Chrome, the issue is Chrome-specific
• Use Gmail's basic HTML view: add /?ui=html to the Gmail URL to load a stripped-down version that works even on slow connections

When to Call a Tech

Some email problems go beyond what a quick settings change can fix:

• Your business email server is down — if your company uses Exchange or a hosted mail server, this isn't a DIY fix
• Outlook data file (.pst/.ost) is corrupted — we can often recover emails from damaged data files using professional tools
• You've been hacked and can't recover the account — we'll help you secure your devices, scan for malware, and set up proper security
• You need email migrated — moving from one email provider to another (or from POP to IMAP) without losing years of messages requires careful handling
• Your computer has malware intercepting email — some viruses redirect or block email traffic. If email works on your phone but not your computer, malware could be the cause

We handle email troubleshooting, setup, and migration every week at our Marion, OH shop. Whether it's a simple password reset or a full mailbox recovery, we'll get your email working again — usually the same day.