![]() ![]() Your mail client connects to the Twilio SendGrid SMTP server,, using port 25 (by default).How the Twilio SendGrid SMTP server works What does the SMTP server do when I send email with Twilio SendGrid? Common SMTP server providers & settings SMTP Provider If you’re looking for more information on SMTP, check out our post, SMTP Service Crash Course. This informs the sender that they have the wrong email address or that their email is being blocked by the receiving server. ![]() It also will send the email back to the SMTP sender if it can’t be delivered. If the SMTP server wasn’t there to process the message, it would be lost in translation.Īdditionally, the SMTP server verifies that the outgoing email is from an active account, acting as the first safeguard in protecting your inbox from illegitimate email. The SMTP server is able to process that code and pass on the message. Once you hit “send,” your email transforms into a string of code that is then sent to the SMTP server. Without an SMTP server, your email wouldn’t make it to its destination. It is an application that is constantly running in anticipation of sending new mail. An SMTP server is also not necessarily on a machine. Like most servers, the SMTP server processes data to send to another server, but it has the very specific purpose of processing data related to the sending, receiving, and relaying of email. ![]() Is an SMTP server the same as a normal server? You can find more details on SMTP servers on our docs page. The recipient’s inbox service provider, such as Gmail or AOL, then downloads the message and places it in the recipient’s inbox. When you send an email, with SMTP host Gmail or AOL, the SMTP server processes your email, decides which server to send the message to, and relays the message to that server. You can generally find your SMTP email server address in the account or settings section of your mail client. For example, the SMTP server Gmail uses is, and Twilio SendGrid’s is. ![]() SMTP stands for Simple Mail Transfer Protocol, and it’s an application used by mail servers to send, receive, and/or relay outgoing mail between email senders and receivers.Īn SMTP email server will have an address (or addresses) that can be set by the mail client or application that you are using and is generally formatted as. What does SMTP mean? We’re glad you asked. To help you navigate your email sending-specifically, an SMTP server to send email-we’ve put together a list of the most common SMTP server questions we receive, so you’ll be an SMTP expert in no time. SMTP servers are complicated, and if you’re just dipping your toe into the how-email-gets-sent world, it’s easy to feel overwhelmed. ![]()
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