Verifying Sender Rewrite Scheme (SRS) implemented by Blackberry

I have implemented a postfix mail receiving server. On this server I am receiving mails coming from Blackberry too.

Since Blackberry implements Sender Rewrite Scheme (SRS), I want to know how can I validate the authenticity of the SRS present in the incoming mails.

Sample email header that contains Blackberry SRS:

Authentication-Results: dev1.cpgtest.ostinet.net; sender-id=neutral header.from=xxxxxxxxxxx@aol.com; spf=pass smtp.mfrom=SRS0=nRLNv7=UW=aol.com=xxxx开发者_开发技巧xxxxxxx@srs.bis7.eu.blackberry.com

thanks in advance

Ashish Sharma

Only the server that has implemented SRS can verify the authenticity of the SRS.

For third parties, above is possible if some external API is available.