Email Not Sending or Receiving: Fix Mail Server and Connection Issues

Step-by-Step Solution

1. 1Close email program completely (Outlook, Mail, etc.)
2. 2Wait 30 seconds
3. 3Reopen email program
4. 4Check if problem resolved
5. 5If not: Restart computer and try again
6. 6Close Mail app completely (swipe away from recent apps)
7. 7Wait 30 seconds
8. 8Reopen Mail app
9. 9Check for new messages
10. 10If not working: Restart device
11. 11Visit gmail.com
12. 12Scroll to bottom of page
13. 13Check storage used (15GB free for personal accounts)
14. 14If over 85% full: Delete emails or purchase more storage
15. 15Check storage indicator in settings
16. 16Free accounts: 15GB typically
17. 17Delete old emails if near limit
18. 18Check with IT for quota
19. 19Typical limits: 2GB-50GB depending on organization
20. 20Delete emails with large attachments
21. 21Empty trash/deleted items folder
22. 22Empty spam folder
23. 23Archive old emails to local folders
24. 24Changed password on website but not in email client
25. 25Password expired (common in work environments)
26. 26Security update required new sign-in
27. 27Settings → Mail → Accounts
28. 28Tap your email account
29. 29Tap Account
30. 30Update password
31. 31Save and test
32. 32Settings → Accounts → your email
33. 33Update password
34. 34Sync and test
35. 35File → Account Settings → Account Settings
36. 36Select account → Change
37. 37Update password
38. 38Test Account Settings
39. 39Next → Close
40. 40Mail → Preferences → Accounts
41. 41Select account
42. 42Update password in Account Information
43. 43Close and test
44. 44Google your email provider + "server settings"
45. 45Common providers have published settings
46. 46Contact email provider if unclear
47. 47Incoming (IMAP): imap.gmail.com, Port 993, SSL on
48. 48Outgoing (SMTP): smtp.gmail.com, Port 465 or 587, SSL/TLS on
49. 49Incoming (IMAP): outlook.office365.com, Port 993, SSL on
50. 50Outgoing (SMTP): smtp-mail.outlook.com, Port 587, TLS on
51. 51Incoming (IMAP): imap.mail.yahoo.com, Port 993, SSL on
52. 52Outgoing (SMTP): smtp.mail.yahoo.com, Port 465 or 587, SSL on
53. 53Get settings from IT department
54. 54Often uses Exchange Server
55. 55File → Account Settings → Account Settings
56. 56Select account → Change → More Settings
57. 57Advanced tab: Verify incoming/outgoing ports
58. 58Outgoing Server tab: Check "My outgoing server requires authentication"
59. 59OK → Next → Close
60. 60Settings → Mail → Accounts → your account
61. 61Account → Advanced
62. 62Verify incoming port and SSL settings
63. 63Back → SMTP → Primary Server
64. 64Verify outgoing settings