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Larger attachments won't download on iOS.

[Berends, P]
P Berends
Newbie
Newbie
Posts: 9
P Berends - 01:09pm, Nov 20 2019

We use about 10 iPhones, all with iOS 13.x.x. Our mailserver is running MDaemon 19.5.1 and ActiveSync 14.1. Since a few months we got problems downloading larger attachments on these iPhones. For example, a JPG image of 60 kB is not a problem, but when it is 4 MB it just won't download. When the email is opened on the phone, grey icons show up with a "download" link. Tapping this icon changes it into "downloading", but nothing happens. Can't find any working solution on the www. Tried reinstalling account, reinstalling app, reboots, network reset, etc. No glory. Can't find anything particular in the log files. I am not sure if it is MDaemon related but all accounts are setup as Exchange ActiveSync. Different IMAP accounts from other providers on the same phone do not show these problems. All attachments do download well in that case.

And, no problems on Android devices.

Has anyone seen this behavior?

Best regards,

Pim

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Marlon B - Nov 27, 2019 1:40 pm (#1 Total: 1)  

 

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Marlon B
Newbie
Newbie
Posts: 27
Hello,

Can you please enable the debug logging for ActiveSync.

To do this go to "Setup/ActiveSync/Service Tuning/Diagnostics and set the Log level to "Debug" and apply the changes.

Try to recreate the issue and then gather a copy of the AirSync-YYYY-MM-DD.log file in the MDaemon/Logs directory.

Open a support case using the following link:
https://www.altn.com/Support/RequestSupport/

Please attach the log file and provide information about the user having the issue as well as the details of the test messages sent.

Marlon

Technical Application Support



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