Postfix & Email Delivery Maintenance on CentOS Server

Company Description

MailPipe is a comprehensive marketing platform, dedicated to helping businesses communicate effectively with their clients since 2009. We offer a wide range of tailored marketing solutions designed to meet the unique needs of businesses in various industries. Our commitment is to empower our clients by providing innovative tools and strategies for enhanced communication and growth. Over the years, MailPipe has established itself as a trusted partner for businesses seeking an all-in-one marketing approach.

We are looking for a skilled professional to provide ongoing maintenance for our email systems based on Postfix, running on existing CentOS servers. The role includes routine and on-demand handling of the mailing infrastructure, configuration maintenance, delivery optimization, and performance checks — for approximately 1–2 hours per day.

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Responsibilities:

•  Install, configure, and optimize Postfix on existing CentOS servers.

•  Configure and maintain DNS records: SPF, DKIM, DMARC, ensuring ongoing validity and functionality.

•  Troubleshoot SMTP issues, delivery problems, blocklisting incidents, and improve email deliverability.

•  Monitor sending performance, identify errors or bottlenecks, and resolve delivery issues.

•  Perform basic environment maintenance and regular health checks.

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Requirements:

•  Proven experience with Linux (CentOS) and Postfix.

•  Strong knowledge of SMTP and email authentication standards.

•  Ability to troubleshoot complex delivery and configuration issues.

•  Independent, precise, and efficient work style within short daily time windows.

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Advantages:

• •  Experience with C# development (used for internal installation and monitoring tools).