# Postmar integration problem

**URL:** <https://forum.mautic.org/t/postmar-integration-problem/20983>\
**Category:** Product Support\
**Created:** [September 23, 2021, 4:22pm UTC](https://forum.mautic.org/t/postmar-integration-problem/20983 "2021-09-23T16:22:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vivousa](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/vivousa/32/1414_2.png) [@vivousa](https://forum.mautic.org/u/vivousa)\
**Post date:** [September 23, 2021, 4:22pm UTC](https://forum.mautic.org/t/postmar-integration-problem/20983/1 "2021-09-23T16:22:15Z")

</div>

**Your software**  
My Mautic version is:  
My PHP version is: PHP Version 7.0.33  
My Database type and version is:

**Your problem**  
My problem is:  
I am trying to connect postmar , I am using a API key in username and log in as it was said in many other topics here, but still I am getting the error,

please can anyone put a normal guide how to connect postmark to mautic

Unable to connect with TLS encryption Log data: ++ Starting Mautic\EmailBundle\Swiftmailer\Transport\PostmarkTransport \<\< 220 [p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com](http://p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com) ESMTP p-pm-outbound04c-aws-euwest1c \>\> EHLO 10.1.1.239 \<\< [250-p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com](http://250-p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com) 250-PIPELINING 250-SIZE 20480000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN CRAM-MD5 DIGEST-MD5 250-AUTH=PLAIN LOGIN CRAM-MD5 DIGEST-MD5 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN \>\> STARTTLS \<\< 220 2.0.0 Ready to start TLS !! Unable to connect with TLS encryption (code: 0)  
++ Starting Mautic\EmailBundle\Swiftmailer\Transport\PostmarkTransport \<\< 220 [p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com](http://p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com) ESMTP p-pm-outbound04c-aws-euwest1c \>\> EHLO 10.1.1.239 \<\< [250-p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com](http://250-p-pm-outbound04c-aws-euwest1c.smtpservice.postmarkapp.com) 250-PIPELINING 250-SIZE 20480000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN CRAM-MD5 DIGEST-MD5 250-AUTH=PLAIN LOGIN CRAM-MD5 DIGEST-MD5 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN \>\> STARTTLS \<\< 220 2.0.0 Ready to start TLS !! Unable to connect with TLS encryption (code: 0)

These errors are showing in the log:

Steps I have tried to fix the problem: