Modoboa Blog
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If you run Modoboa, upgrade pip to 26.2.2 and certifi to 2026.10.19 in every Python virtual environment on your server, then restart Modoboa's services. A certificate authority (eMudhra / emSign) has been compromised, and outdated copies of the Python CA bundle still trust it. This post explains why it matters and gives you the exact commands for a standard Modoboa installation.