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Mail attachments disappeared with Sierra

After upgrading to Sierra, for all my encrypted emails (mime) the attachments disappeared.

I do not see anything just a question mark instead of the attachment in each email.

With a backup I reimported a second time the mails but it hasn't changed anything.

Is ti a Sierra bug ? How to solve it ?

iMac, OS X Yosemite (10.10.3)

Posted on Sep 22, 2016 1:36 PM

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Posted on Sep 23, 2016 8:51 AM

More information:


I opened one email with an attachment directly copied from my El Capitan backup and opened it in Sierra Mail app by doublecliking. It was working perfectly the attachment was visible.

I searched the same email in Sierra Mail App and the attachment was not anymore readable (just a question mark appears instead).


Conclusion: I thing that, while importing mailboxes, sierra mail is corrupting a part of the emails (.emlx) which are after import not anymore readable !

137 replies

Oct 6, 2016 6:16 AM in response to pedro ramon

I have also provided feedback. Another work around I found if you have the option is to download and open email attachments on another device (I used my iPhone 6 with the latest iOS). I was able to print from my phone or save the attachments to dropbox so I could open them on my MacBook Air.


Not as critical, but certainly annoying, was the deletion of my email rules and signatures with the upgrade.

Oct 7, 2016 5:37 PM in response to pedro ramon

Here's another Apple Support thread on this issue:


OS Sierra Mac Mail attachments missing


I've sent Apple feedback, and posted to that thread. As you can see from my message there, a received message viewed in webmail has the photos, while the same received message in Mail doesn't. So it's not just what you see in a sent message, but also in received messages, at least viewed in Mail.

Oct 10, 2016 8:09 AM in response to pedro ramon

I have this as well. I know that the attachments are there because I can get on a web-based access to our Office365 server and get the attachments, but in the Apple Mail client they are missing--this is not always all attachments missing for me. I have messages with 2 of 3 included, and others with 0 of 4, and many with 0 of 1. So this is a huge issue and they need to jump on it right away. I am wasting lots of time.

Oct 10, 2016 8:22 AM in response to pedro ramon

I will just post this in case this helps someone. I looked more closely at this and even went to the extent of installing Thunderbird to see if it was Mail or possibly an OS issue.


What I found in my case was that it was a .tiff issue. When I installed and setup Thunderbird it worked for all the attachments but .tiff images.


When I tried other image types they appeared to work. I know this is probably happening to all file types but I thought I would add this just in case it helps someone.


What appears to have happened, is historically when people use the select tool in the preview application and copy and paste into the mail app, it seems to convert it into a .tiff file. Prior to Sierra, mail then supported .tiff files inline with the email.


In the new version when you paste from preview it pastes it as a .png file (much more sensible) however the new version of mail appears to no longer support viewing .tiff files inline (and probably other file types).


I hope that has helped someone, I searched through the release log of SierraOS and found nothing that indicated any change in this area but it sure seems to have caused problems for me.

Oct 11, 2016 10:19 AM in response to pedro ramon

I have the same problem, some of my e-mails which has attachments, i can read the email text but there is no attachment in mail.app I already rebuilded 2 times. 1st rebuild was partly successful but after day, there are new emails has same problem. I rebuilded again but this time no luck, there is no attachment. I checked my e-mail through the web interface, there is no problem in attachments all works.


Second bug for me, sometimes i can see the attachment but i can't open them because mail.app says it is corrupted. But when i use my webmail interface there is no problem for that email's attachment. I use my company email as IMAP.


Please fix, this 2 problems just start after i update my OSX to Sierra from El-Capitan.


Best Regards,

Serkan

Mail attachments disappeared with Sierra

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