There are myriad overlapping (and conflicting) standards, requiring tight adherence to horribly complicated formatting and encoding rules – the vast majority of code that you'll find online that uses the mail() function directly is just plain wrong, if not unsafe! However, it does not provide any assistance for making use of popular features such as encryption, authentication, HTML messages, and attachments.įormatting email correctly is surprisingly difficult. The only PHP function that supports this directly is mail(). Many PHP developers need to send email from their code. Compatible with PHP 5.5 and later, including PHP 8.2.Protects against header injection attacks.Validates email addresses automatically.SMTP authentication with LOGIN, PLAIN, CRAM-MD5, and XOAUTH2 mechanisms over SMTPS and SMTP+STARTTLS transports.Support for UTF-8 content and 8bit, base64, binary, and quoted-printable encodings.Multipart/alternative emails for mail clients that do not read HTML email.Send emails with multiple To, CC, BCC, and Reply-to addresses.

Integrated SMTP support – send without a local mail server.

Used by many open-source projects: WordPress, Drupal, 1CRM, SugarCRM, Yii, Joomla! and many more.

Probably the world's most popular code for sending email from PHP!.

PHPMailer – A full-featured email creation and transfer class for PHP

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