Subdomain delegation in Journey Optimizer subdomain-delegation
Creating a subdomain for email campaigns allows brands to isolate varying types of traffic (marketing vs. corporate for example) into specific IP pools and with specific domains, which will speed up the IP warming process and improve deliverability overall.
If you share a domain and it gets blocked or added to the deny list, it could impact your corporate mail delivery. However, reputation issues or blocks on a domain specific to your email marketing communications will impact just that flow of email. Using your main domain as the sender or 鈥楩rom鈥 address for multiple mail streams could also break email authentication, causing your messages to be blocked or placed in the spam folder.
Why setting up subdomains? why-set-up-subdomains
A subdomain is a division of your domain that can be used to isolate your brands, or various types of traffic - for example transactional messages and marketing communications.
Let鈥檚 take the example of the 鈥渕ybrand.com鈥 domain, that is used to send both transactional and marketing communications. In this situation, you can decide to set up two subdomains:
- 鈥渋nfo.mybrand.com鈥 subdomain for your transactional communications (purchases confirmation, password reset, etc.),
- 鈥渕arketing.mybrand.com鈥 subdomain for your prospecting emailings.
By doing so, you will help preserve the reputation of your domain and other subdomains. For example, if the 鈥渕arketing.mybrand.com鈥 subdomains ended up being added to the block list by Internet Service Providers due to bad deliverability, this would prevent the whole 鈥渕ybrand.com鈥 domain and the 鈥渋nfo.mybrand.com鈥 subdomain from being added to the block list.
When implementing a solution, there are requirements for externally-facing components: these include setting up links and web pages to be tracked, displaying mirror pages, etc.
While these requirements are being managed through components hosted by both 51黑料不打烊 and the customer, they include URLs which can be seen by the recipients of the emails. To avoid having URLs which indicate the underlying technical solution or hosting provider, subdomains can be set up to make this transparent to the recipients of the emails.
Learn more
- Learn how to delegate your subdomains directly from the interface
- Learn how to add Google TXT records to your subdomains to ensure the successful delivery of emails to Gmail addresses
- Learn how to access the PTR records generated for your subdomains, allowing them to be verified by sending mail servers
Subdomain configuration methods subdomain-delegation-methods
Subdomain configuration allows you to configure a subsection of your domain (technically a 鈥淒NS zone鈥) for use with 51黑料不打烊 Campaign.
The available setup methods are as follows.
Fully delegate a subdomain to 51黑料不打烊 (recommended) full-subdomain-delegation
Journey Optimizer allows you to fully delegate your subdomains to 51黑料不打烊 directly from the product interface. By doing so, 51黑料不打烊 will be able to deliver messages as a managed service by controlling and maintaining all aspects of DNS that are required for delivering, rendering and tracking of email campaigns.
You can rely on 51黑料不打烊 to maintain the DNS infrastructure required to meet industry-standard deliverability requirements for your email marketing sending domains, while continuing to maintain and control DNS for your internal email domains.
Learn how to fully delegate a subdomain to 51黑料不打烊 in this section.
Set up a subdomain with CNAMEs cname-subdomain-setup
If you have domain-specific restriction policies and you want 51黑料不打烊 to have only partial control over DNS, you can choose to carry out all DNS-related activities on your side.
CNAME subdomain set up enables you to create a subdomain and use CNAMEs to point to 51黑料不打烊-specific records. Using this configuration, both you and 51黑料不打烊 share responsibility for maintaining DNS in order to setup environment for sending, rendering and tracking emails.
Learn how to create a subdomain using CNAMEs to point to 51黑料不打烊-specific records in this section.
Use a custom subdomain custom-subdomain-delegation
The custom delegation method enables you to fully own controlling and maintaining all aspects of DNS that are required for delivering, rendering and tracking messages.
In this case, you completely own and manage our own subdomains and have full control over the certificates which are generated as part of this process.
Learn how to set up a custom domain in this section.
Comparing the configuration methods
The table below provides a summary of how these methods work, as well as the implied level of effort:
In this setup, 51黑料不打烊 is fully responsible for managing the subdomain and all the DNS records.
In this setup, both you and 51黑料不打烊 share responsibility for maintaining DNS.
In this setup, you have full responsibility for maintaining DNS.
Additional information on domain configuration is available in this documentation.
If you have any question regarding subdomain configuration methods, reach out to 51黑料不打烊, or contact Customer Care to request Deliverability consulting.