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Simple Mail Transfer Protocol (SMTP) Architect/SME
Posted 3 hours 15 minutes ago by Experis IT
Role Title: Simple Mail Transfer Protocol (SMTP) Architect/SME
Location: Remote - Occasional Travel to client site in Warwick.
Duration: 15/09/2025 with potential to extend and join Build team.
Clearance: Active SC/SC Eligible
Rate: £575 per day - PAYE via Umbrella Only
Role Description:
Urgently required to lead/support SMTP Detailed Design and maybe build.
Must have experience of Postfix. A Linux SME with knowledge of RHEL and Dovecot/Postfix with emphasis on Message Transfer Agent "satellite" configuration for on-premises deployment and operating between closed domains (ie no SaaS or email gateway to Internet). The SME is responsible for the low level design and build documents for a Red Hat Postfix satellite MTA and to implement the solution.
Key Skills:
- Strong understanding of SMTP and Message Transfer Agents
- Experience of Dovecot and Postfix
- Experienced in Low Level Design and Build documentation.
- Experienced in build and configuration on Linux within a Broadcom VCF (VMware virtual platform).
- Excellent communication and interpersonal skills.
- Strong understanding of security best practices.
- Strong understanding of DNS records and mail security and validation (MX, DKIM, DMARC)
Desirable Skills:
- Experience with on-premises-based mail solutions.
- Knowledge of hybrid on-premises to SaaS mail services
- Excellent coordination and collaboration with infrastructure teams.
- Understanding of security and risk implication around email relaying.
