Glossary
An SMTP server is the machine or software that handles ongoing email delivery. It listens on specific ports (like 587 or 465), receives messages from email clients or apps, and relays them to destination servers using SMTP.
When you use Mailgun or another ESP to send email via SMTP, your app connects to the provider’s SMTP server, authenticates, and transmits the message for delivery.
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| youtube.com | YSC | Third Party |