I have 3 G-mail accounts setup under Mail app and for some reason, for 2 accounts, I was able to set "As items arrive" for Download new email under Account setting menu in Mail app but for 1 account, there is no "As items arrive" in the drop down menu for Download new email in the setting. I can only set "Every 15 minutes", "Every 30 minutes", "Hourly" or "Manual". It is so strange and I went in my desktop browser and sign-in to each Gmail account and compare setting for POP and IMAP settings and they are all identical. I don't see why one account cannot fetch new mail as new email arrive.
Anyone know how to fix this issue or have this same problem?
Anyone know how to fix this issue or have this same problem?