Thank you Martijn!
-----Original Message----- From: Martijn Brinkers <[email protected]> Sent: Friday, June 11, 2021 8:47 AM To: [email protected] Cc: Dino Edwards <[email protected]> Subject: Re: [CipherMail User] Re: HTML PDF Encrypted e-mail HTML email is not supported because converting HTML to a PDF is not trivial. If an email only contains an HTML, the HTML part is converted to a text email (not trivial but easier). Whether or not an attached image gets added depends on the MIME structure. With images added as attachments and an HTML alternative part, the MIME structure with most email clients looks like: multipart alternative part text part html part image1 image2 ... If any images are only considered to be used for HTML it might look like multipart alternative part text part html part image1 image2 ... Apple Mail might even complicates things. For example with most email clients, attaching a PDF looks like multipart alternative part text part html part pdf1 pdf2 ... Apple Mail however sometimes adds the PDFs inline with the HTML part multipart alternative part text part html part pdf1 pdf2 ... The scanner which scans the email for parts, searches for the text part and if found, will stop scanning the alternative part. Any inline images or attachments under the HTML part (for example inline images or Apple Mail inline attachment) will therefore not be added as attachments because they are considered to be only valid for HTML. However, if you enable "Deep scan", the gateway will continue scanning the HTML alternative part for attachments https://www.ciphermail.com/documentation/gateway-administration-guide/settings.html#deep-scan-sender-p Any inline image will then also be added. Kind regards, Martijn Brinkers -- CipherMail email encryption Email encryption with support for S/MIME, OpenPGP, PDF Messenger and Webmail Messenger On Fri, 2021-06-11 at 12:34 +0000, Dino Edwards via Users wrote: > Does anyone have any ideas? > > Thanks > > From: Dino Edwards via Users <[email protected]> > Sent: Monday, June 7, 2021 9:17 PM > To: [email protected] > Cc: Dino Edwards <[email protected]> > Subject: [CipherMail User] HTML PDF Encrypted e-mail > > Hi, > > I was wondering if it’s possible to send HTML encoded PDF encrypted > e-mail. I noticed that embedded images in the e-mail do not show up. > Is this an issue with the PDF viewer or ciphermail not processing HTML > e-mail? Is it a security issue? > > Thanks in advance > > > >
