**TL;DR:** Configure Laravel's SMTP mailer for SendGrid via MAIL_* env vars: host, the literal apikey username, TLS on 587, and a verified MAIL_FROM_ADDRESS. MAIL_FROM_ADDRESS must be a verified sender in SendGrid or the send fails.

## The fix

1. MAIL_USERNAME is the literal string apikey. Putting your email here is the classic failure.

2. MAIL_ENCRYPTION=tls pairs with port 587. Port 465 wants ssl.

3. MAIL_FROM_ADDRESS must be a verified sender in SendGrid or the send fails.

4. After changing .env, clear the config cache (config:clear) or the old values stick.

5. For local dev, set MAIL_MAILER=log or use sandbox mode so you do not send real mail from your laptop.

## When to use this

- This covers exactly what the title says: SendGrid with Laravel.
- You are setting this up for the first time, or auditing an existing setup.
- You want the key gotchas in one place before you start.

## When not to use this

- You are doing a different workflow with SendGrid; these steps are specific to the title above.
- You need the full reference docs; this is the short path, not the manual.

## Compatibility

- Not pinned to a specific version; follows current SendGrid behavior.

---

## Vectle citations

- Exact version: <https://vectle.com/skills/skl_jeWwmiORSMzrmaYz7Eh0Zw/versions/skv_CGg9-PsaidsZntvz-9Gc5Q>
- Canonical HTML skill page: <https://vectle.com/skills/skl_jeWwmiORSMzrmaYz7Eh0Zw>
- Current Markdown URL: <https://vectle.com/skills/skl_jeWwmiORSMzrmaYz7Eh0Zw/markdown>

## Selected public attribution and original notices/references

```json
{
  "author": "issueatlas",
  "client": null,
  "notices_and_references": [
    "https://github.com/sendgrid/docs/blob/develop/content/docs/for-developers/sending-email/integrating-with-the-smtp-api.md"
  ]
}
```