Exchange mail not incoming in Mail

It’s the responsibility of applications developers to update their software in accordance with the operating system, not the other way around. Otherwise any OS would be constantly updating and bugging out and for all intents and purposes be inoperable because it’s trying to accommodate for everything, leading to more conflicts.

I have several exchange accounts, and only one of them isn’t working in this manner. The one that isn’t working is an older exchange server, the others are all more up to date.

Sorry to say, but I doubt apple will get around to fixing this any time soon - if you’re able I’d suggest updating your server software, or at the very least migrating to a different provider running compatible software.

This sort of thing is a pain, I agree. But it also encourages developers and technology to continue to update and improve, over time phasing out older versions.

I talked to our internet service provider. They update their server "aggressively". So, the tech checked to make sure they had the latest updates. He said they do, and that it is an Apple issue. So, I am confused with all of the finger pointing. But, needless to say, my Apple Mail has not worked since the iOS update to High Sierra. It has not worked since October or November. Our email server gets updated frequently. It has been updated several times since November. I have spent countless hours on several phone calls with senior level techs at Apple and with our email service company. My mail still does not work.

Also my company IT people told me that our mail server is updated constantly with Microsoft patch!!

It's a typical issue that is bounced between Microsoft and Apple and the fault is always of the other!!

Yes, this works - I have several e-mail accounts and if I quite mail with anything other than the exchange mailbox selected and then switch to the exchange mailbox after restarting mail, all the outstanding mails are being pulled in; otherwise they steadfastly refuse to come in.

I am running High Sierra 10.13.3

After 15 or more calls. We figured it out. Our email server must be upgraded to "Service Pack 3". This helped.......

Seemed to take care of all the problems.

When I previously asked our service provider to update, he mentioned that he updates continuously. For some reason the service pack 3 was not coming up as an option. When I told him the problem with Apple mail needing service pack 3, he looked into it. Found that he could update servers. Now my email works again. Yay!

Mail in High Sierra has heightened security. When you selected to trust the certificate, did you see a option to save the change in setting?

Did you try deleting the sub-folders? If so did it work. I am having the same issue.

Same issue here. Any updates?

I'm still working with Apple on this. No fix as of this time. Sent log files over the weekend.

After the update today I am working again. 10.13.1

I was incorrect. I was able to finally log on and it downloaded all my past messages. However it will not download new emails unless I quit and restart mail, every time.

Same here. Still not working.

If you have more than one mail account within Apple Mail, make sure you have selected one of the other accounts when you quit and re-start Mail. It makes a difference for some reason.

Yes. I did this and it worked just as you described.

Rob