Developer’s Tutorial: How to Send Emails in Laravel using Gmail SMTP and API

Laravel 8–10 applications can send email through Gmail using either SMTP configuration or the Gmail API, beginning with mail settings in config/mail.php, environment variables, and mailable classes that define message metadata, Blade-based content, recipients, and attachments. The SMTP approach uses Gmail server credentials and supports dynamic templates, HTML messages, attachments, multiple recipients with To, CC, and BCC visibility controls, and queued delivery through drivers such as Redis or database queues. The Gmail API approach requires a Google Cloud project, enabled Gmail API, OAuth 2.0 credentials, user authorization, token handling, and construction of URL-safe base64-encoded MIME messages for plain text, HTML, attachments, and recipient headers. Both methods are subject to Gmail limits involving sending rates, daily quotas, authentication requirements, message sizes, and domain authentication, while queued jobs can reduce web-response delays and support retries. As an alternative, Mailtrap Email Sending offers Laravel integration through SMTP or a PHP SDK/API, domain verification, delivery monitoring, transactional and bulk streams, and support for Laravel mailables and campaign-oriented sending.

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