Showing results for 
Show  only  | Search instead for 
Did you mean: 

How does Sinch E-mail 365 handle reputation and deliverability?

Community Manager
Community Manager

Sinch E-mail 365 uses both SPF (Sender Policy Framework) and DKIM (Domain Key Identified Mail) for authenticated email delivery:


SPF (Sender Policy Framework)

Technically, DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic (public –private keys) authentication. Identification of an email association with a trusted domain enhances deliverability.

DKIM (Domain Key Identified Mail)

Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain's administrator.


Monitoring Reputation and Deliverability

Deliverability is monitored via 2 key mechanisms:

  • Using bounce reports: Both Soft and Hard bounces are reported (provided the recipient SMTP server provides the status).
  • Using sender score reports: Sender scores are industry standard for reporting on a sending domain or IP address’ acceptance within the ISP community. They are monitored by Return Path (a 3rd Party).


Shahzad Ismail
Head of Knowledge Management and Community Engagement, Sinch