About Us
Postsig, Inc. builds a SaaS platform focused on email authentication and deliverability, helping organisations prove that their messages are legitimate and reducing the risk of spoofing and phishing. In practice, this means supporting the set up and ongoing management of standards such as SPF, DKIM and DMARC, plus the monitoring and reporting needed to spot misconfigurations and suspicious sending activity. For companies that rely on email for customer communication, marketing, invoicing, or account security, getting this right is a mix of security, compliance, and day to day reliability. Postsig sits in the space where IT operations and security teams need clear, actionable information rather than raw DNS records and complicated reports.
The product is likely to appeal to teams that send email at scale or have multiple domains and third party senders, including SaaS businesses, ecommerce brands, agencies, and any organisation that needs to protect its brand and customers from email based abuse. Because email authentication touches many systems, such as marketing platforms, CRMs, support tools, and transactional email providers, Postsig operates as an enabling layer in a broader stack. It helps teams coordinate changes across different senders, validate that authentication is configured correctly, and maintain a strong sending reputation over time.
Within the SaaS ecosystem, Postsig fits into the intersection of cybersecurity, email infrastructure, and compliance tooling. It is not a general email service provider, it is the kind of specialist product that sits alongside existing sending tools to make them safer and more trustworthy. That positioning tends to create a customer base that values clarity, reliability, and strong support, since the consequences of mistakes can include lost mail, damaged reputation, or increased fraud risk.
People who thrive at Postsig are likely to be those who enjoy solving practical, technical problems with real world constraints. Engineering roles may involve building secure, dependable systems for parsing and presenting authentication data, integrating with DNS and email related standards, and turning complex signals into workflows that non specialists can follow. Product and customer facing roles will benefit from an ability to explain technical concepts in plain language, guide customers through configuration changes, and balance security best practice with the realities of how organisations send email. Experience in security, deliverability, SaaS operations, or B2B support is likely to translate well.
For job seekers, the appeal of a company like Postsig is the chance to work on a focused problem with clear impact. Email remains a critical business channel and also a common attack vector, so improvements are measurable and meaningful. If you like working close to customers, iterating on a product that has to be accurate and dependable, and building software that makes security work easier for busy teams, Postsig is the sort of environment that could be a strong fit.