General discussion

Locked

Notes unknown file type as att1.unk

By abumen ·
When an e-mail came to our Notes from Exchange Server 5.5 by using Outlook, I see the attachment as att1.unk. I get some info from the Microsoft technet site, Lotus.com, Notes.net. I have upgraded our Domino and Notes 4.6.7 but problem still exist.I have controlled SMTPTBLS.NSF lastly and I could not see any problem in it. Can you help me to solve this problem? Thank you.

This conversation is currently closed to new comments.

5 total posts (Page 1 of 1)  
| Thread display: Collapse - | Expand +

All Comments

Collapse -

Notes unknown file type as att1.unk

by allen610 In reply to Notes unknown file type a ...

I have a lotus server and experience the same thing. The attachment is extra header information that microsoft throws in with its outgoing messages that lotus domino server cant decipher so it throws it on as an attachment. That's what I have heard from other lotus administrators and it is nothing to be concerned about. The att1.unk will also come on from what I have found out if the attachment gets corrupted in transit to your server. From the most part if you do a view on them with notepad it contains microsoft header information.

Collapse -

Notes unknown file type as att1.unk

by abumen In reply to Notes unknown file type a ...

Poster rated this answer

Collapse -

Notes unknown file type as att1.unk

by boobookitty In reply to Notes unknown file type a ...

We had a similar problem and here's what I found out and how we work around the issue. Issue: The sender is using outlook, outlook express, or ms exchange and has the intended recipient listed in their (the sender's) personal address book as someone that they can send Rich Text Format(rtf) mail too - unfortunately microsoft uses a somewhat proprietary form of rtf which cannot be read by other mail systems (this is not limited to lotus domino, also happens with groupwise and some other systems too). As the proprietary rtf mail cannot be read properly by other mail systems, attachments are ruined.
Solution: The intended recipient should ask the sender to check their personal address book and make sure that they are not listed to receive rtf mail (the default is yes) - once this change has been made all attachments will come to the receipient in the intended format (doc, xls, etc.)
Hope this helps ...... :-)

Collapse -

Notes unknown file type as att1.unk

by abumen In reply to Notes unknown file type a ...

Poster rated this answer

Collapse -

Notes unknown file type as att1.unk

by abumen In reply to Notes unknown file type a ...

This question was closed by the author

Back to Windows Forum
5 total posts (Page 1 of 1)  

Related Discussions

Related Forums