Sending API, SMTP & developer experience — found from sitemap — Mailtrap Email API/SMTP

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Facts read from this source

• Bulk stream purpose Report an error

  “Bulk Stream is Mailtrap's dedicated infrastructure for sending marketing, promotional, and non-transactional emails.”

• Bulk required for marketing Report an error

  “Mailtrap requires you to use the Bulk Stream for all marketing and promotional emails.”

• Suppression list separation Report an error

  “We separate suppression by a stream. So e.g. you use one domain for both transactional and bulk emails and your recipients unsubscribed from bulk email - it won't affect your transactional email.”

• Bulk dedicated ips Report an error

  “Different IP Pools: Dedicated IPs for bulk sending”

• Bulk smtp host Report an error

  “Bulk bulk.smtp.mailtrap.io”

• Transactional endpoints Report an error

  “Transactional live.smtp.mailtrap.io https://send.api.mailtrap.io/api”

• Smtp ports Report an error

  “Port: 587 (or 25, 2525, 465 with SSL)”

• Sdk bulk flag Report an error

  “bulk: true // This flag switches to bulk stream”

• Auto compliance headers Report an error

  “List-Unsubscribe Headers: One-click unsubscribe functionality List-Unsubscribe-Post Headers: RFC 8058 compliance Precedence Headers: Proper bulk email identification”

• Auto unsubscribe footer Report an error

  “Unsubscribe Links: Automatic footer unsubscribe links when not present”

• Google requirements Report an error

  “Starting February 2024, Gmail requires authentication, easy unsubscribe, and low spam rates for senders of 5,000+ daily emails. Mailtrap's Bulk Stream automatically handles these requirements.”

• Spam rate threshold Report an error

  “Low Spam Rate: Keep spam complaints below 0.3%”

• Bulk sender threshold Report an error

  “Any sender reaching 5,000+ messages to Gmail accounts within 24 hours Counted across all subdomains of your primary domain”

• Domain verification shared Report an error

  “No, once your domain is verified in Mailtrap, it works for both streams.”

• API token shared Report an error

  “Yes, your API token works for both Transactional and Bulk streams. Only the endpoint URL changes.”

• Webhooks unsubscribe Report an error

  “You can also implement your own unsubscribe handling via webhooks.”

• Analytics metrics Report an error

  “Delivery Rate: Monitor successful deliveries Open Rate: Track email engagement Click Rate: Measure content effectiveness Bounce Rate: Identify delivery issues Spam Complaints: Stay below 0.3% threshold Unsubscribe Rate: Monitor list health”

• Custom variables Report an error

  “"custom_variables": { "campaign_id": "summer_2024", "segment": "active_users" }”

• Ip warmup Report an error

  “Start with small volumes and gradually increase”

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