Nixo
asked on
UNK Attachment
We are using MS Exchange Server V5.5 - SP3.
When I send an e-mail to a person who uses Lotus Notes, it receives my e-mail with the attachments.
When I send an e-mail to a group of people, the people who use Lotus Notes do not receive the attachments, or they receive a file with extension UNK which is illegible.
Is the problem on my server or is it necessary to adapt something on the Notes server?
Thank you for any help.
Nixo.
When I send an e-mail to a person who uses Lotus Notes, it receives my e-mail with the attachments.
When I send an e-mail to a group of people, the people who use Lotus Notes do not receive the attachments, or they receive a file with extension UNK which is illegible.
Is the problem on my server or is it necessary to adapt something on the Notes server?
Thank you for any help.
Nixo.
How is Exchange connected to Notes? Are you using the Notes connector or going through a 3rd protocol like SMTP&MAPI?
ASKER
We are using Exchange, and through Internet Mail Service, our e-mails are sended to other companies.
Some of them are using Notes.
This is not a direct connexion between two mail servers.
I've looked at the microsoft suppport page indicated by slink9, but our configuration is already good.
Some of them are using Notes.
This is not a direct connexion between two mail servers.
I've looked at the microsoft suppport page indicated by slink9, but our configuration is already good.
Looks like it's the Notes MTA that's at fault, sorry to paste full text from http://support.lotus.com/lshome.nsf but there's no way to get the individual URL, you'll find a few more related documents with their search engine about "UNK AND SMTP"
Problem:
If the SMTP MTA 1.2 processes an inbound message with an attachment that does not have a "Names=" parameter in the MIME Body Part, the SMTP MTA converts the attachment properly. However, it will have a filename of ATT1.UNK.
Is it possible for the extension on the filename to reflect the subtype of the attachment? For example, if the type/subtype is "application/ms-word", and there is no "Names=" parameter, can the filename be called ATT1.DOC?
Solution:
This issue has been reported to Lotus Quality Engineering and has been addressed in Domino 4.6.3.
Excerpt from the Lotus Notes and Lotus Domino Release 4.6.3 QMR fix list:
SPR# CMOS3UWKCX - Change R4.6.2 SMTP MTA extension for Microsoft Word documents in SMTPTBLS.NSF from "unknown" to "doc". The SMTPTBLS.NSF database is used by SMTP MTA for mapping MIME types/subtypes to/from file extensions when processing Internet mail [4.6.3]
Supporting Information:
This feature is already implemented in inbound message conversion for SMTP MTA 1.2 and the Domino 4.6.2 SMTP MTA. If the file extension is ".UNK", update SMTPTBLS.NSF to have a file extension of the desired subtype. For example, modify SMTPTBLS.NSF to have the file extension ".DOC" for "application/ms-word" so that the filename will be ATT1.DOC.
Problem:
If the SMTP MTA 1.2 processes an inbound message with an attachment that does not have a "Names=" parameter in the MIME Body Part, the SMTP MTA converts the attachment properly. However, it will have a filename of ATT1.UNK.
Is it possible for the extension on the filename to reflect the subtype of the attachment? For example, if the type/subtype is "application/ms-word", and there is no "Names=" parameter, can the filename be called ATT1.DOC?
Solution:
This issue has been reported to Lotus Quality Engineering and has been addressed in Domino 4.6.3.
Excerpt from the Lotus Notes and Lotus Domino Release 4.6.3 QMR fix list:
SPR# CMOS3UWKCX - Change R4.6.2 SMTP MTA extension for Microsoft Word documents in SMTPTBLS.NSF from "unknown" to "doc". The SMTPTBLS.NSF database is used by SMTP MTA for mapping MIME types/subtypes to/from file extensions when processing Internet mail [4.6.3]
Supporting Information:
This feature is already implemented in inbound message conversion for SMTP MTA 1.2 and the Domino 4.6.2 SMTP MTA. If the file extension is ".UNK", update SMTPTBLS.NSF to have a file extension of the desired subtype. For example, modify SMTPTBLS.NSF to have the file extension ".DOC" for "application/ms-word" so that the filename will be ATT1.DOC.
ASKER
Interesting...
There is nevertheless something of
strange: when I send the mail to a person, there is no problem.
When I send it to a group, he receives the attachment as UNK.
Where is the difference?...
There is nevertheless something of
strange: when I send the mail to a person, there is no problem.
When I send it to a group, he receives the attachment as UNK.
Where is the difference?...
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ASKER
Comment accepted as answer
ASKER
It seems then to be a problem with Notes and not with my Exchange.
OK, thanks.
OK, thanks.
http://support.microsoft.com/support/kb/articles/Q259/0/65.ASP?LN=EN-US&SD=gn&FR=0