Mail on my Mac mini suddenly stopped connecting to any mail server (iCloud, Yahoo!, et al). Calendar and other apps connect to iCloud just fine. The failure is isolated to mail but for all mail server accounts.
I've deleted and recreated the accounts to no avail. Does anyone have a fix?
Mac mini, macOS 10.13
Ok, getting to 17. anything means it's getting to Apple, so we know reaching them is not the problem.
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
If using Wifi, instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
System Preferences>Network>choose interface>Advanced>Proxies Tab, make sure none are set, like for HTTP & HTTPS.
System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
8.8.8.8
8.8.4.4
1.1.1.1
9.9.9.9
Apply.
Ok, getting to 17. anything means it's getting to Apple, so we know reaching them is not the problem.
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
If using Wifi, instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
System Preferences>Network>choose interface>Advanced>Proxies Tab, make sure none are set, like for HTTP & HTTPS.
System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
8.8.8.8
8.8.4.4
1.1.1.1
9.9.9.9
Apply.
Open Network Utility in Applications>Utilities>Traceroute tab, enter one of your eMail servers like... imap.mail.me.com,how far does the request get?
Like...
Traceroute has started…
traceroute: Warning: imap.mail.me.com has multiple addresses; using 17.142.163.21
traceroute to imap.mail.me.com.akadns.net (17.142.163.21), 64 hops max, 72 byte packets
1 192.168.43.1 (192.168.43.1) 2.713 ms 2.031 ms 3.264 ms
2 10.198.22.177 (10.198.22.177) 33.016 ms 36.991 ms 30.216 ms
3 10.170.233.98 (10.170.233.98) 32.657 ms 24.743 ms 31.341 ms
4 10.170.233.101 (10.170.233.101) 39.934 ms 36.870 ms 30.746 ms
5 10.164.176.237 (10.164.176.237) 39.934 ms 33.522 ms 29.624 ms
6 ae15.mpr1.sea1.us.zip.zayo.com (128.177.170.117) 52.939 ms 31.668 ms 41.264 ms
7 17.1.134.108 (17.1.134.108) 29.691 ms 36.169 ms 39.072 ms
8 17.1.0.180 (17.1.0.180) 49.832 ms 45.067 ms 48.829 ms
9 * * *
10 17.1.1.107 (17.1.1.107) 48.014 ms 55.248 ms 51.813 ms
11 * * *
12 * * *
Whoa... & you're on 10.13.6 ???
OK, open Terminal in Utilities & paste this in & press return...
traceroute imap.mail.me.com
Thank you, that worked. Initially test messages I sent got hung up in my outbox but I then adjusted the outgoing server and all seems to be working properly. I appreciate your help.
Do you have any thoughts as to what caused this?
Without more clues I'd have to attribute it to Disk Corruption.
Oh, forgot to ask, are you running any Anti-Virus Apps?
Thank you for your response. No, I'm not running Anti-Virus. Also, I don't seem to have the utility to which you refer. Here's a screen shot:
Here's how far it got:
Nevertheless, thank you for so much time and attention. I appreciation you getting me back up and running.
Cheers!
Good news. :)
Mail on macOS High Sierra no longer connects to server
