I will deploying an enterprise grade self hosted email server

Email is undeniably important to each of us and to business services. Traditional email services are tied to a service provider, such as Outlook or Gmail. However, this traditional approach has the following problems:

1. Email addresses are not customizable, lacking personalization and failing to reflect the personal/company's business value.

2. Because Outlook and Gmail are now restricting individual/corporate users from using traditional email login protocols (IMAP/SMTP) and instead forcing them to use OAUTH login, this prevents many systems from connecting to them.

The good news is that I offer an email business mailbox deployment service that essentially allows you to customize all components of your email and completely bypasses vendor lock-in. It includes the following basic components:

1. Complete DNS settings (SPF, DKIM, DMARC, RDNS PTR)

2. An email system with OpenDKIM component support for DKIM signatures, adhering to the highest international best practices.

3. Support for relay sender settings.

4. RoundCube setup and deployment.

5. Postfix + Dovecot architecture.