Exchange and attachments from Mail app issue.

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Level 1

4 points

Exchange and attachments from Mail app issue.

We have exchange server 2019setup in our organization and the mail limit size is 25 Mb. On our iOS devices, we have configured the exchange configuration but we are unable to send any attachment whose size is over 10 Mb. Similarly, if the attachment size is less than 10 Mb then we can attach multiple files upto 20 Mb and the mail is sent successfully.

Can anyone confirm if there is any mail attachment size limit in the Native Mail client?

iPhone XS, iOS 14

Posted on Jul 14, 2021 8:10 AM

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Answer 1

Top-ranking reply

Syn0ptic Author

Level 1

4 points

Jul 15, 2021 9:31 AM in response to Teddy_B

I found the cause. It’s an Exchange server setting that cannot be easily set through the ECP. Basically we have to change the ActiveSync attachment and document size settings.

link on how to here :

https://www.frankysweb.de/exchange-2016-groessenbeschraenkung-fuer-activesync-veraendern/

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Answer 2

Teddy_B

Community Specialist

Jul 15, 2021 8:30 AM in response to Syn0ptic

Greetings, Syn0ptic.

Welcome to the Apple Support Communities. It sounds like you have some questions about sending attachments with the iOS Mail app. We can understand why you’d want more information.

Start by ensuring that you’ve set the Exchange account up correctly: Set up an Outlook account on the iOS Mail app - Office Support

Check out the section titled “Send large attachments”: Work with email attachments on iPhone

We hope this helps! Thank you for being a part of the community.

Sincerely.

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Answer 3

sterling r

Community Specialist

Jul 15, 2021 11:36 AM in response to Syn0ptic

Hi, Syn0ptic.

Thanks for letting us know the issue is resolved! Have a wonderful day.

Warmly.

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Exchange and attachments from Mail app issue.

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