Joomla 2.5 – Could not instantiate mail function Updated on August 16, 2021 by Brad Markle 0 Minutes, 23 Seconds to Read Joomla 2.5 can send email using both the PHP mail() function and with standard SMTP authentication. If you try to use the standard PHP mail() function but your server does not support it, you may receive the following error: Could not instantiate mail function To resolve this issue, we recommend setting up Joomla to use SMTP Authentication rather than the PHP mail function(). Problem: Could not instantiate mail function Solution: Setup Joomla to send email using SMTP Authentication Share this Article Related Articles Transferring Emails from Your Old Host to InMotion Hosting How to Setup Office 365 DNS Records How to fix OLMAPI32.dll and WWLIB.dll error in Outlook 2013 How to Setup Outlook 2016 for Mac Issues with Outlook 2007 Running on Windows 10 Outlook not working after installing Windows 10 IMAP Issues Affecting Outlook 2013 and Office 365 Outlook 2013/Office 365 – Subscribing to your Inbox How to create an email signature in Outlook 2003 How to create an email signature for Mac in Outlook 2011