ATT00001.htm attachment in Outlook when sent with Apple Mail

Question

Level 1

4 points

ATT00001.htm attachment in Outlook when sent with Apple Mail

Hi,

This issue was highlighted previously

ATT00001.htm shows up along a Mail attachment
http://discussions.apple.com/thread.jspa?messageID=8433141

Apple mail compatibility issues / ATT00001.c
http://discussions.apple.com/thread.jspa?messageID=8239867

Both of these topics are locked so I couldn't comment about this annoying issue there and had to start a new topic.

Looks like no-one is able to get to the bottom of this very annoying issue including Experts Exchange who I signed up for to see the answer they had given (their website is ranked highly in Google for this problem).

I thought I would post the comments from Experts Exchange here to save anyone signing up for a free trial just to get their answer like I did...

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Title:
Mac Mail att htm issue in outlook

Question:
I'm using mac original mail software. I did set my HTML style template. The software is best ever.
And works good when I send email to outlook users on PC. However if I attach PDF for example, it does go through and outlook users get it, however when they open message all they see.
- attached PDF
- and att00001.htm file which has inside email text

Not everybody gets idea to open it and thy think it is empty email. The same email will be sent to apple user everything looks properly. Why email text is converting into the htm file? It happens only if i attach something to my message, if I don't then email text is not being converted to htm attachment.

I think there are a lot of user that know this issue, did anybody find a solution yet?

Thank you

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jhyiesla:
I don't think there is anything you can really do about it.

I think that it's how the receivers program is going to interpret it.

For example, I sent an email to my Outlook account from my Mac with just an attachment; no text. I looked at the email in Outlook 2000 and I see the attachment as an item in the body text section of the email. When I look at that same email in Outlook 2003 the attachment shows in the attachment area under the subject line and the body text area is blank.

Then I sent another one with an attachment and some text in the body of the email. In Outlook 2000 I see the text in the text area and the attachment as well as a attxxx file in an area at the bottom of the email. The att file was empty. In Outlook 2003 that same email as the attachment and the empty att file in the attachment area at the top and under the subject line and in the body text area of the email is the text that I typed.

Although Mac Mail uses standard protocols, which is why you can send an email to a Windows PC, it just does some different things. In the WIndows world Outlook and Outlook Express also handle some things differently.

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Goldblum:
Thank you for your reply

This issue makes mail.app useless, do you have any recommendations?
Other client which are as good as the mail.app or would be nice to know what is forcing to convert body text to attachment? I could reduce beautiness of my email template by taking out header (jpg) or not using rich text. What exactly is forcing outlook to convert body to attxxxxx.htm file?

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jhyiesla:
I truly don't know the answer to that question. Sometimes similar things happen coming the other way. I'll get emails in to my Mac Mail that have jpg files and I'll see the actual pictures in the body of the email.

I happen to also have Office 2008 for the Mac installed and when I sent my self a message and looked at it in Outlook 2000 and XP, the email looked "normal" in all instances. The attachment was marked as an attachment, text was where it should be and no att file.

There are other email clients that would probably work on the Mac like Thunderbird... but I'm guessing that you'd have a similar thing as happens with mac mail. Still it might be worth the download to test it out.

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Goldblum:
I used entourage and same HTML template for email and have no problems. It is just so that entourage is as any other MS product "broken" out of the box but did good job and same message is not being converted to HTML attachment when it goes to outlook on PC. I will continue researching internet because it has to be solved. I can't send a message to client without comment to attached invoice. This is so not professional. I will play more with settings of mail.app to see what else can be done to avoid conversion.

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jhyiesla:
Entourage probably works well with Outlook because they're both MS products and MS is going to have somewhat similar looks to all their Office products... although there is quite a bit of difference between Entourage and Outlook.

Here's a link that may help you on your search:

http://email.about.com/od/macemailclients/tp/free.htm

MacBook, Mac OS X (10.5.6), None

Posted on Mar 20, 2009 9:59 AM

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Answer 1

Top-ranking reply

Niko of NL

Level 1

0 points

Jun 5, 2009 4:44 AM in response to hazrd

Hi,

I recently moved my mail from Outlook on the PC (using O2M) to Mail.app on OS X 10.5.7. It soon became clear that people using Outlook in particular have all sorts of problems reading messages from Mail.app. If you compose a message in Rich Text, with the format text, attached picture (jpg), then text; when received in Outlook everything below that photo will be attached as any number of "ATT00xxx.htm". I initially could not believe that Apple would release software that is so flawed so I persisted with all types of settings; windows friendly on/off, plain text / rich text, I even tried "Mail Attachments Iconizer 2.0". All of this testing gave no joy.

To me the problem seems that Mail.app does not allow you to compose HTML messages. It will allow you to send HTML stationary but this is not the same as an HTML message. To me this problem with mail is intolerable and I have, with a huge amount of reluctance, moved to Entourage. Entourage allows the composition of HTML messages and does not suffer this problem.

Please fix this problem with Mail Steve!

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Answer 2

Jun 6, 2009 1:15 PM in response to hazrd

Work around that works for me...
1. Install Mail Attachments Iconizer. Set Let Me Decide and tick all check boxes, put 128k in each of the entry boxes.
2. In Mail, go to Edit, Attachments, set Windows Friendly Attachments and Insert Attachments At End of Message.

1. Fixes empty xxxxxx.htm files being added
2. Stops (not fixes) an issue in Mac mail messages being split when received by Outlook.

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Answer 3

Mar 12, 2010 10:51 AM in response to NicPaillard

I've tested my HTML signature with referenced images (on an external server) in an email with a PDF and a PNG attached at the end of the email. and it is showing fine in Outlook. Still you will get an att0000x.htm but the message is not lost and your attachments will not be lost in a bunch of att000x.htm (only one of these files actually).

So my recommendation is to use a HTML signature with referenced images (if you need images in your sig.) on every email and to put your attached images at the END of your messages, this way, your email will always show the text and your signature.

It would be nice if Apple would kindly put an "Outlook compatible email" option check-box in Mail. It would save a lot of headache to a lot of users. Also, as long as Mail doesn't get the job done properly (even if it's an Outlook problem), people will scorn at Apple, and that is not very good for business.

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Answer 4

Jun 16, 2010 2:46 AM in response to hazrd

Just a few observations that I've already put in another forum about the same subject:

Selecting 'Plain text' (in Preferences - Composing - Message Format) works - but the trade off is that you can't have any 'Rich Text' styling. So nothing bold or italic, etc

Alternatively, if you install the shareware 'Iconizer' you can use Rich Text. Admittedly the people who didn't see your text at all before will now only be able to see your text in Plain text. But it does mean you won't have to compromise loss of Rich text for all those people who don't have the ATT00001 problem.

Here's the link for 'Iconizer':
http://lokiware.info/Mail-Attachments-Iconizer

One final thing. There have been several forums on this matter most of which have been closed and archived.
Many people blame the problem on Windows and Outlook Express specifically.
But my experience is that the problem is far more widespread than that.
I've had the same problem with other Mac Users using Mail.
Its also a consistent problem with Hotmail. Yes I know Hotmail is Microsoft but plenty of Mac Users have Hotmail Accounts too. The ATT00001 problem is identical whether you use a Mac or a PC. Incidentally the only thing that bucks the trend is the iPhone - where Hotmail emails don't lose their text.

The upshot is that this is a BIG problem that Apple should take seriously. When people receive an email with attachments and no text they're likely to be very wary of it. At best they're likely to think the sender has stupidly forgotten to send the text. Virtually no one is going to risk opening up a dodgy file called ATT00001 especially as it comes with a string of others that appear to be empty.

This is a problem that should be right at the top of Apples TO DO list and not just marked as a 'Solved Thread' in an Apple Forum.

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Answer 5

Jun 6, 2009 1:47 PM in response to davidmillermac

Update to posting above.

Iconizer isn't required. I had an image in my signature that was causing the empty .htm files to occur.

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Answer 6

Jan 26, 2010 7:58 AM in response to krismac

Are you located in a network where Exchange Server is being used? This is the most common source of these extraneous attachments. They are not added by Mail. Typically it is the IT folks maintaining your Exchange network who must make a change with the network to solve this. See:

http://www-01.ibm.com/support/docview.wss?uid=swg21343144

You will note that this is not even discussing Macs or Mail 🙂

Ernie

Message was edited by: Ernie Stamper

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Answer 7

IxEm

Level 1

5 points

Oct 26, 2009 2:00 AM in response to Molokoid

Mail Attachments Iconizer did the trick for me. Works like a charm to get rid of these empty ATT00001.htm attachments that Outlook users receive.

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Answer 8

Feb 1, 2010 7:21 AM in response to holspeed

Please open the message you just described in your Sent mailbox, click on Message in the menubar and choose Send Again. Next click on Format in the menubar and choose Make Plain Text. Send and then observe again on the PC with Outlook (and confirm you mean Outlook and not Outlook Express).

How is the network you are using to connect to the internet configured -- modem with ethernet cable only or modem with router and cable or wireless to various computers?

If you wish, you may send a similar message to me to observe -- my address can be found by clicking on my name to the left of this post, and looking in the bio line of the resulting Profile.

Ernie

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Answer 9

Mar 12, 2010 9:34 AM in response to dennisraustin

I've found a web page indicating a trick that is functionning for me without the need of extra software:

http://micahgilman.com/play/disable-mac-mailapp-inline-image-attachments/

That led me to this site which give an utility (prefPane) that helps to play with OSX settings:

http://secrets.blacktree.com/

This made the trick if my attachements are images (like often used in signatures). Other contents will make the email revert to it's "att00001.htm" state. This may be a way to unlock a "compatibility feature" of mail.

Still looking for a real fix... for Outlook...

The only trick I found to look "somewhat" good on (nearly) every mail client with a graphical signature is to create a real html signature with external image (i.e. hosted on an external site).

See here for details:
http://www.createarevolution.com/blog/2008/02/07/creating-an-html-signature-in-a pple-mail/

(I would recommend Nvu to make your HTML page, but it's really old stuff and is PPC, still it works nicely for simple things like that. I've not tried KompoZer. Google for info.)

Attachement problem:

If you put a non-graphical attachement (pdf were used as test material for me) BEFORE your signature, everything is messed up in Hotmail, everywhere else, it's good looking. In Hotmail, everything shows up as an attachement (like in Outlook).

With non-graphical attached files at the END of the message, the signature is looking good in Gmail, Yahoo and Hotmail. Also in Outlook on Windoze it looks good, but you must enable the downloading of external content.

With graphical content attached to an HTML signature, everything shows up fine in Gmail, Hotmail and Yahoo with the image placed at the top of the email or at the end. In Hotmail, however, the image is ALSO showing as an attachment if it is put at the top, but still showing nicely.

If you mix content (image+other) and put it at the top of your email, you will get attachements in Gmail and Yahoo (no att00001.htm), but the html signature is still looking good and the text of your email is showing corectly. In Hotmail everything will show as attachement and you will even loose any message typed in the usual bunch of att0000x.htm files.

If you put your mixed content at the end of your email, you will still get the attachements in Gmail and Yahoo with a good looking signature (still the message is showing perfectly). But you will get the very same result in Hotmail with a good looking signature!

So I would recommend you to always put attached file at the END of your emails, and if you use mixed content (images and non-images attachement), it's even more important.

I'll try with Outlook and post results later.

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Answer 10

Aug 10, 2009 7:50 AM in response to Molokoid

Hi
I was just wondering....
If I install VM Fusion and Windows XP Pro on an iMac, and then install MS Outlook 2003 and use that as my email client on my Mac, whilst I will obviously have solved all the problems apparent in semding emails between a Mac and Outlook, will I still be able to find stuff like photos stored in iPhoto to attch to emails I send though Outlook within the Windows environment.

I know this sounds a weird setup, but Mac is best at leisure stuff and MS Office is needed because of incompatibility issues and most of my audience is a business world using MS Office.

Office for Mac is just not up to the job either - entourage is a very poor attempt at being Outlook, in my opinion.

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Answer 11

Apr 12, 2010 1:14 PM in response to davidmillermac

I was unable to fix the problem until I installed Iconizer. It appears to be a required step for some users.

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Answer 12

Mailman42

Level 2

245 points

Jun 5, 2009 7:53 AM in response to hazrd

One has to remember as well. Outlook/Outlook Express are notorious for not adhering to WWW standards. Outlook Express 4.* (I think) was very bad at reading anything other than their own (micro$oft) cruft.

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Answer 13

Sep 7, 2010 8:18 AM in response to Nick L Wingfield

I agree, this is outrageous. For the past hour, I've tried every combination of adding attachments inline, at the end, using the Terminal trick, the Mail Iconizer, and the various "Windows Friendly" and "Attachments at the end" options in Mail.app. Frankly, none of them worked. With inline attachments, everything after the first attachment is turned into an attachment as well, and with attachments at the end, there are empty ATT * files attached (probably containing one line-break that I added between the attachments when sending them).

Now, this problem shows up both in my Sent Items folder within Mail.app, as well as the Sent Items folder in Outlook on Windows, as well as in the inbox in Outlook on windows, and in the inbox in Mail.app as well. It also shows up on the Outlook Web Access webmail client.

So at least I'm getting a consistent view of what's happening: the problem shows up in both Mail.app as well as in Outlook.

I've also tried sending the same messages using my non-Exchange mail address (using my ISP's SMTP server), and the result is exactly the same. I recall this being different on Leopard, but I'm not sure.

Anyhow, it's frustrating. Just had to dig out my old ThinkPad running XP and Office 2003 to send an e-mail to a bunch of people that was important. Makes me very sad, and it's very very strange that Apple has not been doing anything about this.

Like other people have remarked in this thread: it doesn't matter whether or not Outlook is to blame here, because Outlook is a de facto standard, and if you send your email using Outlook, it comes out perfectly. Apple needs to fix this.

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Answer 14

Barney-15E

Level 10

122,126 points

Jun 7, 2009 6:29 PM in response to doolak

doolak wrote:
Hello there,

even if it may be not really a "Mac issue" but a "Microsoft/Outlook issue", it would be recommended to find a solution. If i send emails to Outlooks-Users (there are tons of them out there...) they dont ask themselves if they have a standard-compliant email client - they just ask me, why i am sending such strange attachments...

And that is how we get mediocrity. Tell them that they've got crap, and they need to complain to their provider. Why sit back and let it continue?

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Answer 15

Nov 9, 2009 9:32 AM in response to hazrd

I am having the issue as well. Any attachments I send also end up getting a blank html document attached with them called "ATT00001.-2.htm" or something similar. This is very annoying! I will look into the plugin to get rid of this, but it should really not happen in the first place.

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