Thanks for all your support so far.
Would you please look into mailbox settings. Currently yunohost does not meet GMAIL’s requirements. When I send an email to gmail the message gets rejected and bounces back with this
Our system has
detected that 550-5.7.1 this message does not meet IPv6 sending guidelines
regarding PTR 550-5.7.1 records and authentication. Please review 550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError for more information 550
5.7.1 . s1si1752159wmj.207 - gsmtp (in reply to end of DATA command)