Is your feature request related to a problem?
Cannot mark emails as high/low priority. No X-Priority header support.
Describe the solution you'd like
Add priority flag in composer. Set X-Priority/Importance headers.
Describe alternatives you've considered
Manual header addition.
Subject line markers [URGENT].
Additional context
RFC 2156 defines priority headers. Most clients support this.
Is your feature request related to a problem?
Cannot mark emails as high/low priority. No X-Priority header support.
Describe the solution you'd like
Add priority flag in composer. Set X-Priority/Importance headers.
Describe alternatives you've considered
Manual header addition.
Subject line markers [URGENT].
Additional context
RFC 2156 defines priority headers. Most clients support this.