diff --git a/src/views/email.js b/src/views/email.js
index 45ca86632..d818e15bb 100644
--- a/src/views/email.js
+++ b/src/views/email.js
@@ -747,6 +747,7 @@ angular.module('Application').controller('EmailController', ['$scope', '$locatio
         { provider: 'google-smtp', name: 'Google', host: 'smtp.gmail.com', port: 587, spfDoc: 'https://support.google.com/a/answer/33786?hl=en' },
         { provider: 'mailgun-smtp', name: 'Mailgun', host: 'smtp.mailgun.org', port: 587, spfDoc: 'https://www.mailgun.com/blog/white-labeling-dns-records-your-customers-tips-tricks' },
         { provider: 'mailjet-smtp', name: 'Mailjet', host: '', port: 587, spfDoc: 'https://app.mailjet.com/docs/spf-dkim-guide' },
+        { provider: 'office365-legacy-smtp', name: 'Office 365', host: 'smtp-legacy.office365.com', port: 587 }, // uses "login" AUTH instead of "plain"
         { provider: 'postmark-smtp', name: 'Postmark', host: 'smtp.postmarkapp.com', port: 587, spfDoc: 'https://postmarkapp.com/support/article/1092-how-do-i-set-up-spf-for-postmark' },
         { provider: 'sendgrid-smtp', name: 'SendGrid', host: 'smtp.sendgrid.net', port: 587, username: 'apikey', spfDoc: 'https://sendgrid.com/docs/ui/account-and-settings/spf-records/' },
         { provider: 'sparkpost-smtp', name: 'SparkPost', host: 'smtp.sparkpostmail.com', port: 587, username: 'SMTP_Injection', spfDoc: 'https://www.sparkpost.com/resources/email-explained/spf-sender-policy-framework/' },
@@ -767,6 +768,7 @@ angular.module('Application').controller('EmailController', ['$scope', '$locatio
             || provider === 'google-smtp'
             || provider === 'mailgun-smtp'
             || provider === 'elasticemail-smtp'
+            || provider === 'office365-legacy-smtp'
             || provider === 'mailjet-smtp';
     };