The following information will help ensure that email is successfully delivered through the campus SMTP gateway.
- The campus SMTP gateway will accept email for postmaster or abuse at any valid UCLA subdomain.
- The campus SMTP gateway will not accept connections from systems that have been determined to be open relays, open proxies, or open routers, or to have otherwise been made available for unauthorized use.
- The campus SMTP gateway will not accept connections from systems that use dynamically assigned or residential IP addresses, or that have generic bulk-assigned DNS entries.
- The campus SMTP gateway may reject connections from servers whose recipient lists consistently generate a high bounce failure rate.
- The campus SMTP gateway may reject messages from systems that do not have valid DNS PTR entries and that send an incomplete or invalid HELO string.
- The campus SMTP gateway will not accept connections from systems that claim to be members of the smtp cluster (ie, issue "HELO smtp.ucla.edu"). The gateway may reject messages from senders that provide other invalid HELO information.
- The campus SMTP gateway may reject connections from servers whose senders do not accept bounce-return messages.
- Complaints submitted by UCLA community members may be used as a factor in determining whether a system is blocked.
- Messages passing through the campus SMTP gateway that are infected with viruses will be rejected.
- All messages passing through the campus SMTP gateway are evaluated for likely spam status and are so tagged with a header. Messages that receive an excessively high score may be rejected by your recipient.
- UCLA does not authorize the use of its computers and network to accept, transmit, or distribute unsolicited email sent from the Internet to UCLA community members.
NOTE: Following these guidelines is not a guarantee that your email message will be successfully delivered. There may be other reasons for rejection.
These guidelines may be updated at any time. Please check back for updates.