Views:

Emails in .MSG format is in a binary format and the attached file would also be in a binary format.

Size limits in TMEMS are based on, not on the original file size, but on the MIME-encoded format. MIME is the Internet standard that extends the format of email to support the following:

  • Text in character sets other than ASCII
  • Non-text attachments such as audio, video, images, application programs etc.
  • Message bodies with multiple parts
  • Header information in non-ASCII character sets

Since the .msg and its attachment is in binary format, they must be converted to Base64 encoding to be suitable for SMTP or email transmission. This encoding may add about 37% to the original file size, this means that an original 20 MB file could exceed a 25 MB file attachment limit.

TMEMS checks the Base64 encoded file size sent through SMTP connection and use it to compare with size limits.

Keywords: email size discrepancy,sent email size is different from size detected by HES,sender Email size,HES deleting email,inconsistent email size,inconsistent email sizes,TMEMS deleting email,sent email size is different from size detected by TMEMS