Web and technology
SMTP
Abbreviation for Simple Mail Transfer Protocol
In short and in plain language
SMTP is the standard way that servers send email.
Shops use it to confirm orders. They also send bills and notices with it.
A clean setup can help these mails get through.
Definition
SMTP is the standard protocol used to send emails between servers. Shops use it to send order confirmations, invoices or notifications. A clean setup can improve the deliverability of these messages.