You may not always want to, but there will probably be a time when you'll want to know if an email you send — like a job application or a support request — is opened by the recipient. It's actually easy to implement, and you may be using an email client on your device right now that supports email tracking. Read receipts are popular on instant messaging services like Apple Messages (for iMessage), but they also work in some email clients, just not in the same way. Apple Mail itself doesn't even offer an email tracking feature. However, many third-party email clients do support receiving... more
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