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Code Issues Releases Wiki Activity

Updated FAQ

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M66B 2019-12-19 12:33:42 +01:00
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FAQ.md
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@ -374,9 +374,20 @@ You should try to fix this by contacting your provider or by getting a valid sec
because invalid security certificates are insecure and allow [man-in-the-middle attacks](https://en.wikipedia.org/wiki/Man-in-the-middle_attack).
If money is an obstacle, you can get free security certificates from [Let’s Encrypt](https://letsencrypt.org).
Alternatively, you can safely accept the fingerprint shown below the error message.
Note that older Android versions might not recognize newer certification authorities like Let’s Encrypt causing connections to be considered insecure,
see also [here](https://developer.android.com/training/articles/security-ssl).
*Trust anchor for certification path not found*
*... java.security.cert.CertPathValidatorException: Trust anchor for certification path not found ...*
means that the default Android trust manager was not able to verify the server certificate chain.
You should either fix the server configuration or accept the fingerprint shown below the error message.
Note that this problem can be caused by the server not sending all intermediate certificates too.
*Empty password*
Your username is likely easily guessed, so this is insecure.
@ -808,7 +819,7 @@ The error *... Unexpected end of zlib input stream ...* means that not all data
The warning *... Unsupported encoding ...* means that the character set of the message is unknown or not supported.
FairEmail will assume ISO-8859-1 (Latin1), which will in most cases result in showing the message correctly.
Please [see here](#user-content-faq4) for the error *... Invalid security certificate (Can't verify identity of server) ...*.
Please [see here](#user-content-faq4) for the error *... Invalid security certificate (Can't verify identity of server) ...* or *... Trust anchor for certification path not found ...*
Please [see here](#user-content-faq127) for the error *... Syntactically invalid HELO argument(s) ...*.