Author Archives: Lorem ipsum

Mails invalid signature because of encoding of periods in quoted printable [migrated]

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I‘m sending a mail encoded with quoted printable encoding that contains some dots .. There is a problem with a specific mailserver/customer. For some reason, they receive the mail in such a form that each dot is encoded as =2E ultimately b… Continue reading Mails invalid signature because of encoding of periods in quoted printable [migrated]→

Guidance: S/MIME Signed Certificate invalid for many clients even though it worked previously and still works

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I have a very strange problem and i would like to get some guidance on this.
Problem description:
My application is sending S/MIME signed Email messages to clients. It worked perfectly no problems were reported and also in my mail client a… Continue reading Guidance: S/MIME Signed Certificate invalid for many clients even though it worked previously and still works→