Fatal error: Uncaught Swift_RfcComplianceException: Address in mailbox given [] does not comply with RFC 2822, 3.6.2. in /usr/local/www/apache22/data/webarts.co.nz/propdata/agent_sites_2018/lib/swiftmailer/classes/Swift/Mime/Headers/MailboxHeader.php:355 Stack trace: #0 /usr/local/www/apache22/data/webarts.co.nz/propdata/agent_sites_2018/lib/swiftmailer/classes/Swift/Mime/Headers/MailboxHeader.php(272): Swift_Mime_Headers_MailboxHeader->assertValidAddress('') #1 /usr/local/www/apache22/data/webarts.co.nz/propdata/agent_sites_2018/lib/swiftmailer/classes/Swift/Mime/Headers/MailboxHeader.php(117): Swift_Mime_Headers_MailboxHeader->normalizeMailboxes(Array) #2 /usr/local/www/apache22/data/webarts.co.nz/propdata/agent_sites_2018/lib/swiftmailer/classes/Swift/Mime/Headers/MailboxHeader.php(74): Swift_Mime_Headers_MailboxHeader->setNameAddresses(Array) #3 /usr/local/www/apache22/data/webarts.co.nz/propdata/agent_sites_2018/lib/swiftmailer/classes/Swift/Mime/SimpleMimeEntity.php(600): Swift_Mime_Headers_MailboxHeader->setFieldBo in /usr/local/www/apache22/data/webarts.co.nz/propdata/agent_sites_2018/lib/swiftmailer/classes/Swift/Mime/Headers/MailboxHeader.php on line 355