models: Improve docstrings around email functions.
models: Improve docstrings around email functions.

synicalsyntax/zulip,rht/zulip,shubhamdhama/zulip,showell/zulip,kou/zulip,zulip/zulip,punchagan/zulip,timabbott/zulip,hackerkid/zulip,punchagan/zulip,synicalsyntax/zulip,showell/zulip,zulip/zulip,brainwane/zulip,showell/zulip,eeshangarg/zulip,andersk/zulip,hackerkid/zulip,synicalsyntax/zulip,shubhamdhama/zulip,andersk/zulip,hackerkid/zulip,synicalsyntax/zulip,shubhamdhama/zulip,kou/zulip,zulip/zulip,rht/zulip,synicalsyntax/zulip,zulip/zulip,synicalsyntax/zulip,andersk/zulip,brainwane/zulip,punchagan/zulip,showell/zulip,hackerkid/zulip,kou/zulip,rht/zulip,shubhamdhama/zulip,eeshangarg/zulip,brainwane/zulip,synicalsyntax/zulip,brainwane/zulip,punchagan/zulip,shubhamdhama/zulip,andersk/zulip,zulip/zulip,shubhamdhama/zulip,punchagan/zulip,kou/zulip,eeshangarg/zulip,timabbott/zulip,rht/zulip,punchagan/zulip,zulip/zulip,brainwane/zulip,hackerkid/zulip,shubhamdhama/zulip,eeshangarg/zulip,eeshangarg/zulip,rht/zulip,hackerkid/zulip,showell/zulip,brainwane/zulip,eeshangarg/zulip,timabbott/zulip,kou/zulip,punchagan/zulip,kou/zulip,hackerkid/zulip,zulip/zulip,rht/zulip,eeshangarg/zulip,timabbott/zulip,andersk/zulip,timabbott/zulip,showell/zulip,showell/zulip,kou/zulip,andersk/zulip,andersk/zulip,timabbott/zulip,rht/zulip,brainwane/zulip,timabbott/zulip