Add header in thunderbird email client1/15/2024 ![]() In addition, the response will provide a message-ID for tracking along with error codes to handle problems gracefully. For instance, if a recipient is deactivated due to a hard bounce you will be notified when attempting to send a message. The REST API will immediately return a success or error message to your application upon receiving a message. Another important benefit of the REST API is response codes.The API also offers batch sending for improved performance when sending many emails.That could help in cases where there is a temporary problem connecting to the Postmark servers. Many Rest API client libraries offer advanced features such as retrying several times on network errors.Using SMTP access avoids big changes to your code base, though this comes at the expense of some features only available or easier to use when sending via API: The REST API is the primary API for the service and the SMTP endpoint is considered a migration route. Depending on your location you will be routed to the closest endpoints to your servers for the fastest response times possible, resulting in very low latency. We maintain endpoints in several AWS Regions around the world. We also make this available for compatibility with older SMTP clients. However, some older SMTP clients may not support other authentication methods. We do not recommend using this method without enabling TLS. PLAIN - When not combined with TLS, the username and password are sent in clear text.DIGEST-MD5 - Protects just the authentication process, however the message content is still sent as plain text if TLS is not enabled.CRAM-MD5 - Protects just the authentication process, however the message content is still sent as plain text if TLS is not enabled. ![]() SMTP Token - The Access Key acts as the username and the Secret Key acts as the password. ![]() If left blank, Postmark will use the default `outbound` transactional stream. API Token and Header - The Server API Token acts as the username and password.This establishes an encrypted connection to our SMTP server, and all credentials and content are encrypted while they are transmitted to us. TLS - TLS is available via the STARTTLS SMTP extension.You can separately enable or disable SMTP access for a server via the server's Settings page.Īfter enabling access, you will be able to connect to (for transactional messages) or (for broadcast messages).įind out why it's important to make sure you're separating transactional from broadcast messages. SMTP Tokens are unique for each message stream. If you need access to this again, you'll need to generate a new SMTP Token for authentication. The Secret Key should be stored in a safe place since after it has been generated, it's no longer visible. An SMTP Token consists of an Access Key (which acts as a username) and a Secret Key (which acts as a password). This can also be found by clicking on a server, then a message stream and then Settings. If you don't have an option to add a custom header during the SMTP send, you can instead use an SMTP Token. If a header is not specified, Postmark will send through the default transactional stream. The only difference between them is the configuration.Īn SMTP client is any web app/email client that allows you to configure/input SMTP details such as SMTP server, SMTP username, SMTP password, etc to allow you to send emails.Įither use the API Token (which acts as both a username and password) and a Header which can be found by clicking on a server, then a message stream and then Settings. There are two ways that you can send with SMTP, depending on what your SMTP client offers. With SMTP access at your disposal, you can simply change a configuration setting in your application and instantly switch delivery to Postmark. Quite often you have your web application delivering emails using SMTP and a migration to Postmark would require you to change your code. ![]() This feature lets you use plain SMTP to send your messages and you only need to point to Postmark's SMTP server. Already using SMTP in your application? You can instantly switch your current email delivery. ![]()
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |