Hello Support community, Greetings.
We did deploy a UCS Server Domain and UCS email server on a AWS EC2 instance and as well a Suite CRM.
Internal e-mail from Suite CRM e-mail settings outbound SMTP test is reported has delivered. Initial we had an issue related to connectivity when adding the SMTP server by IP and this was related to not match the CN name on the email server certificate. We are using the email server FQDN name and is working. It is even working using the email domain (external domain) as configured in the user accounts as the user e-mail.
We deploy UCS in an internal domain and we add email domain on it to match our e-mail external domains
We also configured the user domain accounts with proper e-mails and mail quotas.
On the AWS side we have our external domain registered with route 53 and MX records on the AWS DNS hosted zones pointing to a A record that point to external address of the UCS domain server IP.
Ports on the security group for TCP 25, 465 and 587 are opened and telnet from my local pc to the external mx recorded name show that communication is working and flowing.
Also nslookup using -type=MX email-domain AWS-DNS server do return the right records.
When try to setup e-mail account in Thunderbird we do not manage to get the settings from the email server account.
Can you please provide any guidance on what could be the issue ?
It would be highly appreciated.