When using a third party email delivery service, email authentication helps to verify the identity and trust between the sender (Email Delivery) and the receiving server (ISPs and corporate mail servers) by imprinting both SPF and domain keys (DKIM) into your DNS records. If a domain does implement SPF, however, and it is forged, the receiving server will be more likely to block the fraudulent email. With enough such reports, Bayesian spam filters would be more likely to block the domain, thus blocking any potential legitimate emails. Without SPF, a spam email can be spoofed to show a particular domain, in which case the recipient would likely report the email as spam. A domain which implements SPF is much less likely to be spoofed. Using SPF can increase client confidence and trust. Typically "fails" are rejected and soft fails are marked as potentially spam. How these results are handled is left to the receiving domain’s administrators to handle. The simplest are + (which is implied if omitted) and -, resulting in a pass or a fail, respectively.
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The mechanisms are combined with qualifiers to determine how to handle a match. "all" always matches and serves as a default action. "MX" and "A" are resource records that are compared between the email and the SPF record to decide whether or not to accept the email. The other mechanisms test the legitimacy of the email. V=spf1 include:rp. include:ap.rp. include:eu.rp. ~all Are there limitations to the type of email I can send with Email Delivery?.Contact My Oracle Support who can work with you to understand your use case and increase the sending limit as needed.Email Delivery supports high volume, but the limit is set as a safeguard for our customers' reputations.Maximum messages size including base64 encoding and headers is 2MB. Approved senders will be limited to 10,000 for enterprise customers. Enterprise accounts are limited to 50,000 emails in a rolling 24-hour period and sending rates must not exceed 18,000 emails per minute.
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Customers that sign up on for a free trial are limited to 200 emails in a rolling 24 hour period and sending rates must not exceed 10 emails per minute.The following limits can be increased to meet large scale sending requirements by opening a service request from My Oracle Support. Limits are put on accounts to safeguard the service and our customers' reputations. The Email Delivery platform is managed by Oracle Cloud Infrastructure's Email Deliverability team. Postfix and SendMail are two popular SMTP products, but any SMTP library can be used. Setup and test your SMTP connection from your system through Email Delivery. Please see the Oracle Cloud Infrastructure DNS FAQ for how to set this up.Ħ. Follow the instructions to configure your DNS for sender policy framework (SPF) by adding a TXT record under the corresponding domain. If you create an approved sender in Phoenix, you cannot send mail through Ashburn.ĥ. Note approved senders are specific to the region. These are the email addresses that will appear in the ‘From’ line of the email. Create one or more approved senders within a specified compartment. Your user must be in a group with permission to manage approved senders in this compartment.Ĥ. Ensure that you have the correct compartment chosen. Choose Email in the Oracle Cloud Infrastructure Console. In the settings for the new user, choose SMTP credentials on the left, then generate SMTP Credentials.ģ. Ensure that user is in a group that has a policy to manage approved-senders, for example, allow group MyGroup to use approved-senders in compartment M圜ompartment).Ģ. From the Oracle Cloud Infrastructure Console locate the user under which you'll create SMTP credentials. Follow the steps below in the API or Oracle Cloud Infrastructure Console to begin sending email.ĭetailed instructions on how to configure and use Email Delivery will be available hereġ.
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