our customer receives too many mails, basically from 5 domains, letś say a.com, b.com, c.com, d.com and e.com.
He wishes to move to trash AND forward mail to email@example.com, any mails coming from the previously mentioned 5 domains (a.com to e.com), EXCEPT if the mail came from, let's say, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org (this is, if a mail comes from a.com, and it is not from email@example.com, forward that mail to firstname.lastname@example.org and store it in trash. Otherwise store it in mailbox; and likewise for b.com, d.com, etc).
He also wishes to forward to email@example.com any mail with a subject like "inscripcion en linea"
The problem is, i have done this in many ways but for some reason, the filters work correctly for *@e.com, but they won't work for *@a.com
How should I apply the filters? I'm really puzzled, i've tried many combinations with no improvement in the situation