email_otp 3.2.0

A fast & simple email authentication OTP sender and verification flutter package.

3.2.0

• Security: Replaced Random() with Random.secure() in OTP generation to ensure cryptographically secure codes.
• Feature: Added EmailOTP.lastError to retrieve specific error messages (e.g., SMTP Auth failure, network issues) when sendOTP fails.
• Feature: Automatically attaches a plain text fallback to the email message to drastically improve deliverability and spam scores.
• Feature: Added resendOTP({required String email}) method to resend existing valid OTPs without generating new ones.
• Feature: Added headers parameter to EmailOTP.config() allowing custom SMTP headers (like Reply-To).
• Feature: Added EmailPort.port1025 support to cleanly run test environments against MailHog or Mailpit.
• Fix: Removed default "[e-mail]" sender address to prevent SPF/DMARC delivery failures. appEmail now defaults to the authenticated SMTP username.
• Fix: Reset _isExpired flag in sendOTP() so subsequent OTP requests aren't instantly marked as expired.
• Fix: Enforced _isExpired check in verifyOTP() and securely trimmed whitespace from user input.
• Added explicit void return types to static methods to resolve static analysis lint warnings.
• Upgraded mailer dependency to ^7.1.0.
• Feature: Added v7, v8, v9, and v10 premium templates with responsive light/dark modes.
• Feature: Added dynamic {{year}} placeholder replacement for email footers.
• Fix: Rebuilt all previous templates (v1 to v6) to properly support responsive dark mode rendering across all major email clients.

3.1.0

• BREAKING CHANGE: Removed server-side dependency. Now sends emails directly from the client.
• REQUIRED: You must now provide your own SMTP credentials using EmailOTP.setSMTP().
• Added remote template fetching from GitHub via jsDelivr.
• Added dependency mailer and http.
• OTP expiry option added
• getOTP changed into method getOTP()
• isExpired() method added to validate otp expiry time
• v6 New theme added
• bugs fixed

3.0.1

• Documentation broken image link fixed

3.0.0

• Various bug fixes have been implemented.
• Documentation has been improved for better clarity and ease of use.
• New features added.
• Added new themes: v4 and v5.
• Replaced setConfig() with config().
• In the sendOTP() method, use the userEmail: property.
• Removed the auth: property from the setSMTP method; it is no longer needed.
• You can now easily pass the OTP type using the OTPType enum class.
• You can now pass the smtp_port: value easily using the EmailPort enum class.
• You can now pass the smtp_secure: value easily using the SecureType enum class.
• You can now select themes using the EmailTheme enum class.

2.1.2

• bugs fixed
• theme customization [added]

2.1.1

• error handling [added]

2.1.0

• bug fixed
• Customize Template [added]

2.0.1

• bug fixed

2.0.0

• bug fixed
• new cool email template
• new feature added for custom SMTP

1.0.4

• format fixed

1.0.3

• otpType property added.

1.0.2

• Changed class Name from Email_OTP to EmailOTP.
• otpLength property added.

1.0.1

• readme changed.

1.0.0

• initial release.