Mail app no longer fetches new mail from Exchange account (10.13.1)

[swiftaw]

I have 3 accounts set up in mail, iCloud, Gmail, and a work Exchange account (Office365). All of a sudden the Exchange account refuses to fetch new emails. The emails arrive perfectly fine on the web app, or on in the mail app on my iPhone, but do not appear in the mail app on my macs (all 3 of them). I have tried hitting the get mail button, i have tried restarting mail, and I have tried to rebuild the mailbox (which sometime temporarily fixes the issue).

Anyone else had this happen?

 

[lveryeri]

I have the same problem. Only rebuilding the inbox or closing and re-opening the Mail app fetches new mail.

 

[mikecwest]

I have 3 accounts set up in mail, iCloud, Gmail, and a work Exchange account (Office365). All of a sudden the Exchange account refuses to fetch new emails. The emails arrive perfectly fine on the web app, or on in the mail app on my iPhone, but do not appear in the mail app on my macs (all 3 of them). I have tried hitting the get mail button, i have tried restarting mail, and I have tried to rebuild the mailbox (which sometime temporarily fixes the issue).

Anyone else had this happen?

Have you tried removing and re-adding the mailbox? I have had that happen in the past, not on High Sierra, but on some other MacOS version, and it solved the problem for me.