To fight spam, many email service providers have tightened restrictions on sending and receiving mail. As a result, the mail forwarded to these service providers (e.g. Gmail, Yahoo, Apple) may be spam filtered or outright rejected. Because the service providers control the forwarded messages from offsite, we cannot guarantee the email delivery, or determine what happened to an undelivered message after it exited Caltech's mail servers.
In February 2024, Google will implement new restrictions that will further impact delivery of forwarded email. Learn more at https://support.google.com/mail/answer/81126?hl=en.
Benefits of Using Caltech Email
Your Caltech Microsoft 365 mailbox is protected by a variety of email security features and technologies. If you forward your email, you lose many of the benefits that our mailbox protection tools provide, since these tools won't be able to act on malicious messages that have been delivered to an offsite mailbox.
In addition, IMSS will not be able to proactively monitor access to your mailbox for anomalous activity. In the event of a security incident involving your mail or access to your mailbox, we will have very limited ability to assist you in determining what happened.
Stop Email Forwarding
To stop forwarding your email submit a ticket at https://help.caltech.edu (request type: IMSS > Email & Calendar > Forwarding Email (Add/Remove/Update) Request Form).
Learn how to access your Caltech Email from any browser /services/email-calendar-messaging/how-log-office-365 or configure your preferred email application to access your Caltech mailbox /services/email-calendar-messaging/email-configuration-guides.
Questions?
For questions, contact the IMSS Help Desk at https://help.caltech.edu, help@caltech.edu, or 626.395.3500.