2022 Ask HN: What service are you using to send marketing emails? https://news.ycombinator.com/item?id=32535397

https://hn.algolia.com/?query=mailchimp%20comments%3E10

2021 emailoctopus postmark mailersend|lite sendgrid campaign-monitor constant-contact https://news.ycombinator.com/item?id=28516219&p=2#28516522

2016 (self-hosted): mailtrain dada-mail-project+ses mailwizz! maybe:sendy | mailgun sparkpost https://news.ycombinator.com/item?id=11424189

2017 ses sendy mailblast mailgun postmark mailtrain mail-for-good kevy mailget https://news.ycombinator.com/item?id=15493127 (+per-recipient customization tools)