Backslash was dropped from header value

Aspose.Email Product Family
1

Hi there,

When we load EML and add it to PST, we found that backslash in the header value was dropped.
For example:

To: test@test.com, abc@aaa"aaa.com, a b \c
Junk: ~!@#$%^&*()_+1234567890-={}|[]\:";'<>?,./<br><br>After I added the message to PST, then imported to outlook, I found that those two headers were changed to:<br>To: test@test.com, abc@aaa"aaa.com, "a b c"<br>Junk: ~!@#$%^&*()_+ 1234567890-={}|[]:";’<>?,./

For the first to header a b \c was changed to "a b c"
For the second junk header: was dropped

Why Aspose.Email will make those changes? Should we just use whatever we read from the EML if outlook was not rejecting those characters?

2

Hi,


Thank you for your inquiry.

I tried to get hold of one such message file by creating it myself, but the header’s don’t support such values. Can you please share a sample EML/MSG file with such headers information? We shall look into it for further investigation and share our findings with you.

3

Please check attached EML file.

4

Hi Ying,


In the LocalPart section of this article, it says that:

“The restrictions for special characters are that they must only be used when contained between quotation marks, and that 2 of them (the backslash \ and quotation mark " (ASCII: 92, 34)) must also be preceded by a backslash \ (e.g. “\"”)”.

In your sample file, there is a single backslash that the API is considering as a line break and ignoring it during conversion from MailMessage to MapiMessage. In my opinion, this issue can be further investigated once we have the enhancement EMAILJAVA-33463 in place.