sendmail 500 char limit for paragraph

Are Bee · 03-25-2015, 09:29 AM

Thanks in advance...
I am command line piping into sendmail from C code. I am sending sizable text containing actual newline characters (about 4k total) and simple html. The mail ends up on MS Outlook. Here's my question:
Generally speaking, things look OK until I send a large single paragraph. This has a linefeed inserted at character 500(?) and the remainder of the paragraph is continued as a new paragraph. Is there a buffer length option or a command line option that I can adjust to make this come out as a single paragraph?
I have tried this with several shorter paragraphs above and below and it's only the single, long paragraph that is broken.
(I am aware of the RFC about 80 characters in html tags inserting "!" and dealt with that problem building a table. I'm thinking a similar "fix" might also be available for this?)

NevemTeve · 03-26-2015, 03:53 AM

An option is sending it in base64:

Code:

Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: base64

YXQgd2ViIHdpbi1wYyB3aW5wcm9iYSB3cmFwLmRhdCB3cmFwdGVzdC5zaCB4IHhzZCB4dGVybS0y
NTZjb2xvci50aSB4dGVybS1uZXcudGkgeHp0ZXN0IHpzaWdhLnR4dCB6c29maQo=