I'm not able to send reply to mail via our company exchange server 2016 activesync, new emails work just fine. My second device is on ios 10 where this works with same emails which i'm not able reply to on ios11. This begun with beta 1 but now on beta 5 it seems, that something changed in activesync and exchange 2016 does not like it.
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Cannot send mail (message was rejected)
- Thread starter d4vex
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Sorry, been a long morning here. I didn't notice you had said it.
That is a good question. We don't allow Beta on our devices, but it might be worth loading for testing before it gets deployed. We also have 2016 here. I will say that it could also be that they are still developing on it and that it will be fixed before it goes out to production.
Have you filed a bug report?
Yes i did.
I hope it gonna be fixed, but better to be prepared
Anyway i got chance to add another exchange 2016 to the phone and results are the same. So it seems there are some changes in activesync protocol which exchange 2016 doesn't like. Exchange 2010 works fine with all betas.Even with the GM version the issue still exists. Can't sent e-mails with attachments or photos inserted.
Same probleem here (on GM, Office 365). From time to time message is rejected. Reboot solves this but returns for no apparent reason.
I had this problem a few times after installing iOS 11. The message end up in the mail "Outbox". I go there and try to send it again and it goes through.
Same problem in both iPhone and iPad on the GM seed build. No need to reboot, just go to the Outbox, open a message and click Send. It might not work on the first try, but eventually it does.
Thanks for your tip. However I already tried this, sometimes up until ten times and it still would not send.
I had that happen a couple of days ago. I can usually send it from the outbox but for whatever reason it would not. Tried a reboot, still wouldn’t send. Out of frustration I went to the outbox and sent it from my personal email.
This is the only other discussion about it I could find:
https://forums.developer.apple.com/thread/79446
This is going to be a disaster for enterprise when they start rolling out iOS 11 to production devices. My mind is absolutely blown that this issue exists in the GM build.
[doublepost=1505753932][/doublepost]I have logged this bug with Apple and will let you guys know what happens.
https://forums.developer.apple.com/thread/79446
This is going to be a disaster for enterprise when they start rolling out iOS 11 to production devices. My mind is absolutely blown that this issue exists in the GM build.
[doublepost=1505753932][/doublepost]I have logged this bug with Apple and will let you guys know what happens.
Sounds like the only option at the current time for Exchange 2016 running on Win 2016 is to disable http/2 on the Exchange servers using this registry key:
https://support.microsoft.com/en-us...-cipher-suite-ordering-in-windows-server-2016
https://support.microsoft.com/en-us...-cipher-suite-ordering-in-windows-server-2016
I resolved this by going into account settings and reentering the password. Not had any issues on the 3 exchange accounts I use since doing that.
This is happening with me as well on the GM build. I have to try multiple times to get my email through on iOS 11. My other phone is on iOS 10 and no issues.
Apple have responded!
https://support.apple.com/en-us/HT208136
If you can‘t send an email with iOS 11 and an Outlook.com or Exchange mail account
You might see an error message that says "Cannot Send Mail. The message was rejected by the server."
If your email account is hosted by Microsoft on Outlook.com or Office 365, or an Exchange Server 2016 CU3 running on Windows Server 2016, you might see this error message when you try to send an email with iOS 11: "Cannot Send Mail. The message was rejected by the server."
Apple is working closely with Microsoft to resolve the issue and will release a fix soon in an upcoming software update.
https://support.apple.com/en-us/HT208136
If you can‘t send an email with iOS 11 and an Outlook.com or Exchange mail account
You might see an error message that says "Cannot Send Mail. The message was rejected by the server."
If your email account is hosted by Microsoft on Outlook.com or Office 365, or an Exchange Server 2016 CU3 running on Windows Server 2016, you might see this error message when you try to send an email with iOS 11: "Cannot Send Mail. The message was rejected by the server."
Apple is working closely with Microsoft to resolve the issue and will release a fix soon in an upcoming software update.
Just about to update but this is a showstopper for me and absolutely ridiculous that it takes to release day to get acknowledged by Apple.