“Our friends at Litmus anecdotally noted open rate increases of 10-15% as a result of adding symbols to subject lines”. Campaign Monitor got great ressources on everything mail campaign related. For example: Symbols in Subject Lines.
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“Our friends at Litmus anecdotally noted open rate increases of 10-15% as a result of adding symbols to subject lines”. Campaign Monitor got great ressources on everything mail campaign related. For example: Symbols in Subject Lines.
