✉️ Email Delivery
Documentation, reference material and tutorials for CRM-NG SMTP Email: setup guides for every mail service, troubleshooting, and one article per error message.
Mailers
20 articlesStep-by-step setup for every mail service CRM-NG SMTP can send through.
- Amazon SESSend WordPress email through Amazon Simple Email Service with an IAM access key, a verified domain and the right AWS region.
- Brevo (formerly Sendinblue)Connect CRM-NG SMTP to Brevo with a v3 API key and an authenticated domain, or use Brevo's SMTP relay instead.
- Default (PHP mail) — why to avoid itWhat the Default (none) mailer does, why its mail often lands in spam or vanishes, and the few cases where it is acceptable.
- Elastic EmailConnect CRM-NG SMTP to Elastic Email with an API key that can send email and a validated sending domain.
- Google Workspace / GmailConnect CRM-NG SMTP to Gmail or Google Workspace with your own Google OAuth app, so your site sends through your Google account.
- MailerSendConnect CRM-NG SMTP to MailerSend with an API token and a verified domain, and understand the trial account limits.
- MailgunConnect CRM-NG SMTP to Mailgun with an API key, your verified sending domain and the matching US or EU region.
- MailjetConnect CRM-NG SMTP to Mailjet with your API key and secret key, and validate the address or domain you send from.
- Mandrill (Mailchimp Transactional)Connect CRM-NG SMTP to Mandrill, Mailchimp's transactional email service, with an API key and a verified sending domain.
- Microsoft 365 / OutlookSend WordPress email through a Microsoft 365 mailbox using Microsoft Graph and an app registration in Microsoft Entra ID.
- Other SMTPSend WordPress email through any SMTP server: host, encryption, port, Auto TLS, authentication and common server settings.
- Pepipost (Netcore)Connect CRM-NG SMTP to Pepipost, now Netcore Email API, with an API key and a verified sending domain.
- PostmarkConnect CRM-NG SMTP to Postmark with a Server API Token, a verified sender, and the right message stream.
- ResendConnect CRM-NG SMTP to Resend with an API key that has sending access and a verified domain.
- SendGridConnect CRM-NG SMTP to SendGrid with a Mail Send API key and an authenticated sending domain.
- SendLayerConnect CRM-NG SMTP to SendLayer with an API key and an authorised sending domain.
- SMTP.comConnect CRM-NG SMTP to SMTP.com with an API key and a sender (channel) name, and verify your sending domain.
- SMTP2GOConnect CRM-NG SMTP to SMTP2GO with an API key that can send email and a verified sender domain.
- SparkPostConnect CRM-NG SMTP to SparkPost with an API key that can send transmissions, the right US or EU region, and a verified sending domain.
- Zoho MailSend WordPress email through your Zoho Mail mailbox using SMTP and an application-specific password.