Connecting your email through IMAP and SMTP can run into issues because this method of connection is cryptic and often of low importance for many 3rd tier email service provider.
Common Causes & Solutions to IMAP / SMTP Connectivity Problems:
An incorrect Password: This is the most common issue while connecting via IMAP and SMTP. Please be 100% sure you are using the correct password."
If you are 100% sure your password is correct, #2 is the most likely cause. You may see the error: ”Wrong email or password provided”Login attempt was blocked because it looked suspicious: Check your emails login activity > approve it > try again (Microsoft Activity). If you are 100% You may also receive the error: ”Incorrect login credentials or blocked login attempt.”
Disabled IMAP and SMTP Features: Contact your web admin or Email Service Provider and ask them to enable IMAP and SMTP connectivity.
Security & Firewalls blocking connections: Contact your web admin or Email Service Provider and ask them if there are any security settings blocking this feature.
Unstable or Outdated Email Service Provider: Contact your email provider and ask why your server keeps returning an error and keeps disconnecting.
If All Else Fails: The last resort is migrating your team's email provider to Google Workspace or Microsoft 365.