From: FreeSWITCH mod_voicemail <${voicemail_account}@${voicemail_domain}>
To: <${voicemail_email}>
Subject: ${voicemail_message_len} sec Voicemail from ${voicemail_caller_id_name} ${voicemail_caller_id_number}
X-Priority: ${voicemail_priority}
X-Mailer: FreeSWITCH

At ${voicemail_time} you were left a ${voicemail_message_len} second message from ${voicemail_caller_id_name} ${voicemail_caller_id_number}
to your account ${voicemail_account}@${voicemail_domain}