fix: add more basic email patterns

Signed-off-by: Alexander Trost <[email protected]>

services/mailer/email_utils.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"slices"
-	"sort"
 	"strings"
 	"time"
 
@@ -113,14 +112,10 @@ func (s *Server) generateEmailProposals(ctx context.Context, userInfo *userinfo.
 		}
 	}
 
-	sort.Slice(emails, func(i, j int) bool {
-		return emails[i] < emails[j]
-	})
+	slices.Sort(emails)
 	utils.RemoveSliceDuplicates(emails)
 
-	sort.Slice(domains, func(i, j int) bool {
-		return domains[i] < domains[j]
-	})
+	slices.Sort(domains)
 	utils.RemoveSliceDuplicates(domains)
 
 	return emails, domains, nil
@@ -129,6 +124,8 @@ func (s *Server) generateEmailProposals(ctx context.Context, userInfo *userinfo.
 func getBasicNameEmails(firstname string, lastname string) []string {
 	return []string{ // User fullname: Erika Mustermann
 		utils.Slug(fmt.Sprintf("%s.%s", firstname, lastname)),                                               // erika.mustermann
+		utils.Slug(fmt.Sprintf("%s", firstname)),                                                            // erika
+		utils.Slug(fmt.Sprintf("%s", lastname)),                                                             // mustermann
 		utils.Slug(fmt.Sprintf("%s%s", utils.StringFirstN(firstname, 1), lastname)),                         // emustermann
 		utils.Slug(fmt.Sprintf("%s%s", firstname, utils.StringFirstN(lastname, 1))),                         // erikam
 		utils.Slug(fmt.Sprintf("%s.%s", utils.StringFirstN(firstname, 1), utils.StringFirstN(lastname, 3))), // eri.mus