College of the Siskiyous

Student Email Support

When you register for or are waitlisted for a class at COS, you will automatically be provided with a Microsoft Office 365 account for your student email. Your Microsoft Office 365 account offers many other applications and features as well. Please wait 24 hours after registering for this account to be created before trying to access it. Your COS student email account is used for all official communications from the College, so please be sure to check it regularly or have it forwarded to an account you check often. For more information about waitlisting, see our Waitlist Procedure page.

Frequently Asked Questions (FAQs)

Your COS student email address will be your mySiskiyous username, followed by -

COS uses Microsoft Office 365 for student email and Office Web Applications. For new students, log in with the following information:

  • Go to and log in with your full COS student email address. Your COS student email address will be your mySiskiyous user name, followed by -
  • The first time you log in, use your six-digit birthdate (mmddyy) followed by the letters "em" as your password. For example, 051388em for someone born on May 13th, 1988. After you attempt to log in the first time, you should be prompted to change your password.

If you are having trouble with your student email account, send an email from your personal email account (that is on record with the College) to Include in the email your name, COS username, explanation of the problem and one of the following indentifiers: student number, birthdate or last 4 digits of your Social Security Number. Alternately, you may call us at (530) 938-5523 during open hours.

Settings (Gear) Location

If you wish to have your student email forwarded to another address, log in to your student email account in Office 365. Click on the Settings (gear) icon in the upper right corner to open the Settings menu.

My app settings - Mail location

Click on the Mail link under the heading of "My app settings" to open the mail options page.

Click on "Forwarding" in the mail options menu. Click on "Start forwarding" and enter the email address you wish to have your student account forwarded to. Click "Save" at the top of the page to begin forwarding your email.

Mail - Accounts - Forwarding location

To stop forwarding your student email, simply go back to the same page and click on "Stop Forwarding" and "Save."

Please remember that your account provided by College of the Siskiyous is the account to which we will be sending all student correspondence. It is your responsibility to maintain both accounts should there be any changes in the future.

No, your Office 365 account works through your web browser (Internet Explorer, Chrome, Firefox, etc.) Your Office 365 account does offer Office 365 ProPlus, with the new 2016 desktop applications, as a free download for installation on up to five computers or mobile devices. To take advantage of this offer, click on the "Install software" link provided in the Office 365 menu page that opens when you sign in.

If you are having trouble with your student email account, please email, being sure to include your name, date of birth, and last 4 digits of your SSN, or call us at (530) 938-5523.

Contact Student Help Desk

Fall 2019 Hours:
Monday: 9:00 am - 5:00 pm
Tuesday: 9:00 am - 5:00 pm
Wednesday: 9:00 am - 5:00 pm
Thursday: 9:00 am - 5:00 pm
Friday: 8:00 am - 12:00 pm

Phone: (530) 938-5523