how do I get STARTTLS working with sendmail on FreeBSD 10.3 ?

Matthew Seaman matthew at
Sun Mar 19 22:40:28 UTC 2017

On 19/03/2017 15:16, Gerard Seibert wrote:
> On Sun, 19 Mar 2017 14:34:34 +0000, Matthew Seaman stated:
>> The dh.param file you can generate by:
>>   openssl dHParam -outform PEM -out dh.param 2048
> Are you sure about that command? I receive the following error message:
> openssl dHParam -outform PEM -out dh.param 2048
> openssl:Error: 'dHParam' is an invalid command.
> However, using lower case, ie. 'dhparam' works fine.

Ooops.  Perils of copying from the web without checking everything
yourself.  I knew the command was /something/ like that, but clearly the
details escaped me.

Oh, and while you're thinking about DH parameters, consulting this site
should prove illuminating:



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