Version 1.6.8

[Improvement] Added support for 4096-bit TLS certificates.

[Improvement] The custom email sender verification process has been optimized to process verifications continuously instead of hourly.

[Improvement] Added functionality to retry the custom email sender verification process.

[Improvement] The DKIM status for custom email sender domains is displayed in the Dashboard.

[Improvement] Legacy Twilio SMS integrations will now see instructions in the Dashboard for updating the integration to comply with international guidelines and improve SMS delivery.