I recently did a resend to non-openers and the subject line went out as "unsupported'. We have a database of over 30,000 people who receive this email and this has drummed up fear that we SPAMMED them.
I was hoping there was something you could do to rectify this situation other than an apology. Perhaps a credit for this month as now I am spending my morning dealing with this issue, which was caused by your platform.
Thank you for bringing this to our attention! Although I can see you were able to speak with our phone support about this experience, I would be happy to share our answer here in the Community as well.
We have received some reports where the subject line for a resend to non-openers comes through as "unsupported." These cases appears to be caused by emojis in the subject line on the resend. I apologize we do not have a time estimate for when this will be resolved. This is something we are still collecting information on as we continue to troubleshoot. We have tracked this experience in your account and added you to our queue to be notified when it's resolved. We have also submitted your credit request to our Billing Support for further assistance. For your account security we are unable to authorize refunds or go into your billing details here in the Community.