Postmark[0] have that and store it for 45 days[1] which is really handy. I use them, not affiliated.
[0] https://postmarkapp.com/ [1] https://postmarkapp.com/email-analytics
[0] https://postmarkapp.com/ [1] https://postmarkapp.com/email-analytics
Don’t store content - Requirements
7 days - $5 per month 28 days - $5 per month 45 days (Default) - Free 90 days - $5 per month 180 days - $8 per month 365 days - $12 per month