Solution to Sending One-Off Transactional Email
I am looking for a way to send one-off transactional emails in the future, such as an "alert" email, to a list of users. I have used Exacttarget previously, which had this capability, however, my current company uses Hubspot, which does not have the capability to send one-off transactional emails.
One solution that was proposed to me was using "display: none !important" on the unsubscribe link, so the email would not look like a marketing email (which it isn't!) However, I am concerned that would upset spam filters.
Will that solution work, or is there another way to send one-off messages to users in the future?