ITS has established smtp.hawaii.edu for the UH Application Developer community to use in application development. Given that a large number of printers and other appliances now point to mail.hawaii.edu, the intention is to establish a separate SMTP server for developers in order to help insulate applications from any issue that might crop up with mail.hawaii.edu.

smtp.hawaii.edu

• Recommended for application developers to utilize in UH applications that generate email messages

• Port 25 is only available from within the UH network (see "Troubleshooting ..." below).

• The infrastructure for this service features a load-balancer and two physically isolated virtual hosts.

mail.hawaii.edu

• Legacy SMTP server

• Will continue to be used by the various departments for setting up printers, scanners, etc.

Email Sending Limits

For more information on sending limits, please consult these resources:

• <https://www.hawaii.edu/askus/1203>

• <https://support.google.com/a/answer/166852?hl=en>

Service Limitations

• This service does not relay mail for @hawaii.edu users from non-UH networks.  In other words, it is not available for use by outside service providers.

Troubleshooting smtp.hawaii.edu

• Cannot connect.

  • ITS is allowing all UH networks to connect to smtp.hawaii.edu:25. Check your server and firewall to ensure that outbound connections on port 25 are permitted.

  • If you are configuring a username and password for your mailer software, don't.