Verification mails not received

[Codingal teachers]

Candidates are trying to sign up on jira. But they are not receiving the verification mail.
http://codingal-help-support.atlassian.net/servicedesk/customer/portals

[Andy Heinzer]

Hi,

Is this still an ongoing problem?  If you could let me know the addresses of those users that are not receiving a verification email, I can investigate this further on our support side to see if perhaps there is a suppression that prevents our systems from sending to those addresses.

Regards,

Andy