Hello all,

I've got a bit of a weird one. I've a 2013 iMac 27" running El Capitan. Everything runs wonderfully but in the last few days Mail has been playing up.

I have three Gmail accounts set up in Mail which I've shorted in this graphic to d, k and m. If I click on the d inbox file (or just the inbox) the app crashes but it is fine if I click on k or m, and is also fine if I click on d, k or m under sent, Junk and Trash. The All Mail has the same issue as the Inbox.

The d Gmail account work fine via the browser, just not in Mail. I've restarted and let the computer off for a period but to no avail. I've not recently added any new software.

The report from Mail quit unexpectedly is below. Does anyone have any clause? [hopefully other than delete the app and reinstall]

Thank you in advance.

Process:               Mail [3583]
Path:                  /Applications/Mail.app/Contents/MacOS/Mail
Identifier:            com.apple.mail
Version:               9.3 (3124)
Build Info:            Mail-3124000000000000~2
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Mail [3583]
User ID:               502

Date/Time:             2020-11-16 19:20:32.350 +1300
OS Version:            Mac OS X 10.11.6 (15G22010)
Report Version:        11
Anonymous UUID:       

Time Awake Since Boot: 200 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000018
Exception Note:        EXC_CORPSE_NOTIFY

VM Regions Near 0x18:
--> 
    __TEXT                 0000000107b91000-0000000107f4c000 [ 3820K] r-x/rwx SM=COW  /Applications/Mail.app/Contents/MacOS/Mail

Application Specific Information:
objc_msgSend() selector name: release
dyld: in dlopen()
/System/Library/CoreServices/Encodings/libLatin2Converter.dylib