#smtp
#smtp

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How Important Is an SMTP Service Provider for Email Deliverability?

Using a professional SMTP service with proper authentication, dedicated servers, and reputation management significantly improves email deliverability for bulk and transactional emails.

Information security

fromWordtothewise

3 weeks ago

Folding email headers

Exceeding RFC 5321 line-length limits causes mail servers to rewrite messages, which can break DKIM signatures and trigger DMARC failures, especially at Microsoft.

Web development

fromwww.sitepoint.com

1 month ago

Mail() error, can I troubleshoot

Configure PHP to send mail via Gmail SMTP (smtp.gmail.com) using correct port, authentication, and TLS/SSL or use a mail library like PHPMailer.

Deliverability

fromWordtothewise

2 months ago

Changes happen, even if you don't keep up

SMTP imposes costs on both senders and receivers; recipients often bear major costs like spam filtering, causing delivery failures independent of sender changes.

fromSitePoint Forums | Web Development & Design Community

5 months ago

How to get PHPMailer to work without composer

To use PHPMailer without Composer, you need to manually include required class files. Ensure you include 'SMTP.php' and 'PHPMailer.php' before using the classes.