forked from Silverfish/proton-bridge
22 lines
1.5 KiB
HTML
22 lines
1.5 KiB
HTML
<h1>Why is there a warning sign when installing the Bridge profile on macOS?</h1>
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<p class="standfirst">
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This warning indicates that the certificate used to secure the communication channel between Bridge and your email client is not signed by a
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trusted third party.
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</p>
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<p>
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In order to communicate with Bridge, Apple Mail requires secure connections using SSL/TLS. This cryptographic protocol includes an identity
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verification system using certificates. For publicly available servers, certificates are normally issued and digitally signed by a certificate
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authority, such as Let's Encrypt. This is not possible for Bridge, as the IMAP and SMTP servers are running on your own computer, and are not
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accessible from any network (local or internet).
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</p>
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<p>
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The solution is to use a self-signed certificate. When setting up an email account where the server provides a self-signed certificate, most
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email clients will issue a warning asking you whether you trust the server or not, because the certificate was not issued by a certificate
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authority. The client has no way of verifying that the server is who it pretends to be.
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</p>
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<p>
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You can safely ignore this warning. The check concerns only the communication between your email client and Bridge, which occurs within your
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computer. On the other end, the communication between Bridge and the Proton servers uses the HTTPS protocol, and the identity of the remote
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server is verified by Bridge.
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</p>
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