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Email really only deals with the ASCII charset. As a result anything outside of this charset really needs to be base 64 encoded. You are already torturing the mailserver by sending non ascii chars in the body (ie e acute). It may be your CSV contains non ASCII chars and this is causing the mail server to barf.

However, the problem is probably this:

$smtp->datasend("Content-type: multipart/mixed; boundary=\"frontier\"\n"); # needs to be all on one line or like this: $smtp->datasend("Content-type: multipart/mixed; boundary=\"frontier\"\n");

The whitespace before boundary indicates that is the line continuation (it is), but in your code you send it as a header line (it isn't). It does not really explain your symptoms as described, but is wrong and should fail.

As you seem hell bent on rolling your own solution I suggest you base64 encode your CSV and send it as binary. You can just cut and paste the < 30 lines of code from MIME::Base64 encode routine to do this. BTW I would not use just "frontier" as your multipart boundary. "==frontier==", which will become "--==frontier==" would seem a far more improbable boundary.

You can make your code a lot more readable if you use a HEREDOC.

my $body = .... my $attach = .... # base 64 encoded data my $a_name = ..... my $email =<<EMAIL; MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="==frontier==" This is a multi-part message in MIME format. --==frontier== Content-Transfer-Encoding: binary Content-Type: text/plain $body --==frontier== Content-Transfer-Encoding: base64 Content-Type: application/octet-stream; name="$a_name" $attach --==frontier==-- EMAIL $smtp->datasend($email) $smtp->dataend() $smtp->quit;

In reply to Re: Send mail with attachment using only SMTP by tachyon-II
in thread Send mail with attachment using only SMTP by Mad Ant

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