About

Postline is the email infrastructure of the SRS ecosystem

We build transactional email for SRS products and external teams: API, SMTP, domain authentication, and observable delivery in one service.

Explore the SRS ecosystem

About Postline

Postline sends service messages such as sign-in codes, alerts, receipts, order updates, and system events. The platform combines a REST API and SMTP relay with SPF, DKIM, and DMARC checks, suppression lists, webhooks, and delivery logs. Production API access is immediate, while domain verification unlocks external recipients.

The SRS ecosystem

  • SRS Conglomerate was founded in 2019 and develops applied digital products with shared launch infrastructure.
  • GhostMesh covers VPN and network privacy; Cortex covers marketing and analytics; PravoGuide covers LegalTech and documents; Postline covers transactional email and deliverability.
  • The ecosystem spans technology and software, cloud infrastructure, commerce, media, R&D, and financial services, with a market focus on Europe and MENA.
  • Products share a platform foundation while each service remains accountable for its product, security, and commercial operations.

Legal information

  • Individual entrepreneur: Mishagin Vyacheslav Vladimirovich.
  • INN (Tax ID): 390609456123.
  • OGRNIP: 324390000046940.
  • D‑U‑N‑S®: 933899532.
  • SRS trademark: No. 1152137, registered on 1 October 2025.

Contact and transparency

For service questions contact support@srs-postline.com; for personal-data requests use privacy@srs-postline.com; for contracts and legal details use legal@srs-postline.com. A postal address is provided on reasonable request. Data processing, cookie, acceptable-use, and subprocessor policies are published on this site.