MimeKit 2.0.4: Wrong number of attachments

[FSGRSolutions]

First of all, thank you so very much for your work and dedication on this project. Using v2.0.4 of MimeKit and MailKit, and every now & then the MimeMessage.Attachments returns an IEnumerable with the wrong number of attachments or 0 when there should be at least 1. Let me know where to send the protocol logs so you can inspect them.

[jstedfast]

A MIME part is ONLY considered to be an attachment if it has a Content-Disposition: attachment header. Does it have that? If not, then it's not an attachment.

[FSGRSolutions]

From the POP3 Protocol Log:

S: From: <xxxxxxxxxxx@xxxxxxxxxxx.com>
S: To: <xxxxxxx@xxxxxxx.com>
S: Date: Fri, 22 Jun 2018 14:49:14 -0500
S: Subject: XXX XXXXXX Invoice 35877 
S: Content-Type: multipart/mixed;
S:  boundary="--boundary_26_a97744c9-4713-4a63-8bec-a65696010a1c"
S: X-ASG-Orig-Subj: XXX XXXXXX Invoice 35877 
S: Message-ID: <bbac0b15dc494fbc98cccc60ef7a7318@pcalakexch05.ad.packagingcorp.com>
S: X-Barracuda-Connect: UNKNOWN[172.16.1.135]
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S: X-Virus-Scanned: by bsmtpd at packagingcorp.com
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S: SpamDiagnosticOutput: 1:99
S: SpamDiagnosticMetadata: NSPM
S: X-OriginatorOrg: sealedair.onmicrosoft.com
S: X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jun 2018 19:49:57.2682
S:  (UTC)
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S: 
S: ----boundary_26_a97744c9-4713-4a63-8bec-a65696010a1c
S: Content-Type: text/plain; charset="us-ascii"
S: Content-Transfer-Encoding: quoted-printable
S: 
S: =0A=0A
S: ----boundary_26_a97744c9-4713-4a63-8bec-a65696010a1c
S: Content-Type: application/octet-stream; name="Inv35877.pdf"
S: Content-Transfer-Encoding: base64
-serialized content after-

[jstedfast]

Notice that there is no Content-Disposition: attachment header. Therefor, by definition, they are not "attachments"... hence why they are not in the Attachments collection.

You need to use the BodyParts property instead.

[FSGRSolutions]

Is there anything I can tell the person sending the email that they're doing "wrong"? or any workaround you can recommend?

[jstedfast]

Just use the BodyParts instead.

[FSGRSolutions]

of course! thanks sir!!