Configuring mail domain authentication in ispmanager. Email marketer's guide for administrators
I'm Kristina, an email marketing specialist at ispmanager. One of my responsibilities at my company is to monitor email deliverability. Many factors affect deliverability, but one of the most important is the correct configuration of email domain authentication. Incorrect configuration can lead to spam, domain and IP blacklisting, and a high percentage of SMTP servers refusing to accept your emails. In this article I will give a step-by-step guide on how to configure DNS records in ispmanager, give tips on how to control email deliverability and troubleshoot common problems. This article is intended for ispmanager users and anyone interested in how to configure domain authentication.
Content
Configuring DNS records and mail domain authentication
Email delivery monitoring and troubleshooting
Setting DNS records and configuring email authentication for domain
In order to successfully deliver emails to clients, it is important to configure four DNS records: SPF, DKIM, DMARC, and rDNS. These records ensure that emails coming from the domain to the recipient's server are legitimate and not spam or spoofed.
Important: Make sure that the domain is pointed to the panel server at the domain name registrar. Otherwise, the created records will not work and you will have to create or migrate them to the correct name servers.
Configuring SPF
SPF (Sender Policy Framework) — is a DNS record that indicates which IP addresses are authorized to send emails on behalf of your domain. Multiple servers and IP addresses can be specified in one SPF record. For example, when emails are sent from your IP and from the mailing service (ESP), as we do in ispmanager.
To create an SPF record in ispmanager:
1. From ispmanager Main menu navigate to Domain names (DNS).
2. Select a domain → Manage DNS records.
Click Create record and select the TXT type as the record type.
