Crashing on Reply - but not all emails

Seems (hopefully) I maybe figured this out.

In one account *'Email Address(es)' field had a malformed email address (accidentally added my name instead of an email address).

*3rd field down in IMAP account Settings.

Additional note:

• the email account with above error is a 'catch all' type with a '*@domain.com' login username for server. In case that had an additional impact.
• replying to emails from all 5 accounts crashed the app not just the account with malformed 'Email Address(es)

Will update again if any issues come up.

Can close this now.

I've not had any crashes on reply since ensured Account>'Email Address(es)' field had properly formed email address.

but a check/warning dialog if user enters something in account settings that it doesn't like would be nice, frustrating couple of days there.