Question:
Why am I getting 'provider returned error' when trying to send emails with IMAP authentication?
Error details:
grant is missing imap username or password or smtphost or smtpport, unable to fetch connection details
Answer:
When using IMAP authentication with Nylas, you may encounter a 'provider returned error' when attempting to send emails if the SMTP settings are missing or incorrectly configured. Here's what you need to know:
Common Causes
- Missing SMTP Settings: While it's possible to create a grant with only IMAP settings for reading emails, sending capabilities require proper SMTP configuration.
- Incomplete Authentication: The SMTP host and port must be provided during the authentication process, even if you've successfully configured IMAP settings.
How to Fix
During authentication, ensure you provide:
- SMTP host (e.g., smtp.example.com)
- SMTP port (commonly 587 for TLS or 465 for SSL)
- Valid credentials if different from IMAP
Look for the 'Different SMTP credentials' checkbox during authentication if your SMTP credentials differ from your IMAP credentials.
Common SMTP Ports
- Port 587: Used with STARTTLS encryption
- Port 465: Used with SSL/TLS encryption
If you're unsure about your SMTP settings, contact your email provider or check your email client's configuration for the correct values.
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