Spamassassin low scores sending email from vTiger
The popular anti-spam tool Spamassassin assign low score to emails sent by vTiger reducing the probability to reach destination:
The main reasons for the low score are:
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Use of the X_PRORITY header that is enabled by default in the phpmailer version used in vtiger. This can be fixed either updating to the latest phpmailer version or commenting one line in the version currently in use
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Mail only in html format without text version This can be fixed with a simple change in file vtigercrm/modules/Emails/models/Record.php
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<html> tag is missing in the html message Also this can be fixed with a simple change to file vtigercrm/modules/Emails/models/Record.php
I'm attaching the patch file fixing the three problems vTigerSpam.patch.zip