Mail Issues after Mojave upgrade

[webbymac]

Hi,

I recently helped a friend with a 2015 iMac upgrade to Mojave; it was on Yosemite.

I ran a backup, performed the install, did the updates; all good.

I then opened Mail, where she has 3 exchange accounts, and Mail would crash every time I made one in particular go online. I tried all sorts of things to remedy this but in the end I had no choice but to remove the account and add it in again. This went well. Or so it seemed.

Now, when she sends emails (from that account) they are going into her recipients junk/spam folder.

Why is this happening?

Can anyone help?

Thanks

 

[BrianBaughn]

They're going to the spam folder of every recipient of emails from that account?

 

[webbymac]

Apparently so.

 

[BrianBaughn]

Apparently so.

Does she have a signature that goes out with emails from only that account?

 

[webbymac]

Does she have a signature that goes out with emails from only that account?

Yes, in the Apple Mail client. I think she wasn't happy with it and maybe attempted to change it.

 

[BrianBaughn]

Tell her to send some test email without it.