The Ultimate Guide to Formal Emails
Hubspot
APRIL 9, 2019
Keep your subject line to seven words or less for optimal open rates, and don’t try to dazzle your reader with extreme subject line wit at first email. If you send a message with the subject line, " Regarding next week’s call, " and you have no such call scheduled, you’re asking to get marked as spam and lose all trust and credibility.
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