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I need to send email through an (external) SMTP server from Java however this server will only accept CRAM-MD5 authentication, which is not supported by JavaMail.
What would be a good way to get these emails to send? (It must be in Java.)
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I tried the code on the example of a real CRAM-MD5 transaction, and also on the example given into the RFC 2195.
It does not work because the conversion to an hexadecimal string is not correct. For exmaple, with this code, you will obtain "b913a62c7eda7a495b4e6e7334d3890" instead of "b913a602c7eda7a495b4e6e7334d3890" and the sent authentication string will not be correct.
If you download the source code of javaMail, you will see the implementation of the function toHex into the unit "DigestMD5". Using this conversion, it will work.