Fix smtp email sending and connection issues

The connection issue for users using

custom SMTPs

has been resolved.

Improved Email Reliability: This update eliminates protocol-related transport errors, ensuring a seamless connection with all supported SMTP providers.
Increased Deliverability: Users can expect more stable email flows for transactional, onboarding, and marketing messages.
Fewer Support Cases: This improvement reduces internal triage time associated with email send failures linked to low-level connection errors.