diff --git a/frontend/components/mail/MailPickerModal.vue b/frontend/components/mail/MailPickerModal.vue
new file mode 100644
index 0000000..7b893c8
--- /dev/null
+++ b/frontend/components/mail/MailPickerModal.vue
@@ -0,0 +1,228 @@
+<script setup lang="ts">
+import type { MailMessageHeaderDto } from '~/services/dto/mail'
+import { useMailService } from '~/services/mail'
+import { useMailStore } from '~/stores/mail'
+
+const props = defineProps<{
+    modelValue: boolean
+    /** ID de la tâche cible (destinataire du lien) */
+    taskId: number
+}>()
+
+const emit = defineEmits<{
+    'update:modelValue': [value: boolean]
+    /** Émis après liaison réussie — payload = id du message lié */
+    linked: [messageId: number]
+}>()
+
+const { t } = useI18n()
+const mailService = useMailService()
+const mailStore = useMailStore()
+
+// ─── État ─────────────────────────────────────────────────────────────────
+
+const searchQuery = ref('')
+const allMessages = ref<MailMessageHeaderDto[]>([])
+const selectedMessage = ref<MailMessageHeaderDto | null>(null)
+const isLoading = ref(false)
+const isSubmitting = ref(false)
+
+// ─── Filtrage local (pas d'appel API par frappe — les messages sont déjà chargés) ──
+
+const filteredMessages = computed(() => {
+    const q = searchQuery.value.toLowerCase().trim()
+    if (!q) return allMessages.value
+    return allMessages.value.filter(
+        (m) =>
+            (m.subject ?? '').toLowerCase().includes(q)
+            || (m.fromName ?? '').toLowerCase().includes(q)
+            || (m.fromEmail ?? '').toLowerCase().includes(q),
+    )
+})
+
+// ─── Chargement à l'ouverture ─────────────────────────────────────────────
+
+watch(() => props.modelValue, async (open) => {
+    if (!open) return
+    searchQuery.value = ''
+    selectedMessage.value = null
+    isLoading.value = true
+    try {
+        // Utiliser le dossier actuellement sélectionné dans le store si disponible,
+        // sinon fallback sur INBOX.
+        const folderPath = mailStore.selectedFolderPath ?? 'INBOX'
+        const page = await mailService.listMessages(folderPath, undefined, 50)
+        allMessages.value = page.items
+    } finally {
+        isLoading.value = false
+    }
+})
+
+// ─── Actions ──────────────────────────────────────────────────────────────
+
+function close(): void {
+    emit('update:modelValue', false)
+}
+
+function selectMessage(msg: MailMessageHeaderDto): void {
+    selectedMessage.value = msg
+}
+
+async function handleSubmit(): Promise<void> {
+    if (!selectedMessage.value) return
+    isSubmitting.value = true
+    try {
+        await mailService.linkTask(selectedMessage.value.id, props.taskId)
+        emit('linked', selectedMessage.value.id)
+        close()
+    } finally {
+        isSubmitting.value = false
+    }
+}
+
+// ─── Formatage ────────────────────────────────────────────────────────────
+
+function formatDate(iso: string | null): string {
+    if (!iso) return ''
+    return new Date(iso).toLocaleDateString('fr', {
+        day: '2-digit',
+        month: 'short',
+        year: 'numeric',
+    })
+}
+</script>
+
+<template>
+    <Teleport v-if="modelValue" to="body">
+        <Transition name="mail-modal" appear>
+            <div class="fixed inset-0 z-50 flex items-center justify-center p-4">
+                <div
+                    class="absolute inset-0 bg-slate-900/40 backdrop-blur-sm"
+                    @click="close"
+                />
+
+                <div
+                    class="relative z-10 w-full max-w-lg rounded-2xl bg-white shadow-2xl ring-1 ring-black/5 overflow-hidden"
+                    style="max-height: min(90vh, 640px)"
+                >
+                    <!-- Header -->
+                    <div class="flex items-center justify-between border-b border-neutral-100 bg-neutral-50/80 px-6 py-4">
+                        <h2 class="text-base font-bold text-neutral-900">
+                            {{ t('mail.pickerModal.title') }}
+                        </h2>
+                        <MalioButtonIcon
+                            icon="mdi:close"
+                            aria-label="Fermer"
+                            variant="ghost"
+                            icon-size="20"
+                            @click="close"
+                        />
+                    </div>
+
+                    <!-- Corps -->
+                    <div class="overflow-y-auto px-6 py-5 space-y-4">
+                        <!-- Recherche locale -->
+                        <input
+                            v-model="searchQuery"
+                            type="text"
+                            :placeholder="t('mail.pickerModal.searchPlaceholder')"
+                            class="w-full rounded-md border border-neutral-300 px-3 py-2 text-sm focus:border-primary-500 focus:outline-none focus:ring-1 focus:ring-primary-500"
+                        />
+
+                        <!-- Résultats -->
+                        <div class="max-h-80 overflow-y-auto rounded-md border border-neutral-200 divide-y divide-neutral-100">
+                            <!-- Chargement -->
+                            <div
+                                v-if="isLoading"
+                                class="flex items-center justify-center py-8 text-sm text-neutral-400"
+                            >
+                                <Icon name="material-symbols:progress-activity" size="18" class="mr-2 animate-spin" />
+                                {{ t('mail.pickerModal.loading') }}
+                            </div>
+
+                            <!-- Vide -->
+                            <div
+                                v-else-if="filteredMessages.length === 0"
+                                class="py-8 text-center text-sm text-neutral-400 italic"
+                            >
+                                {{ t('mail.pickerModal.empty') }}
+                            </div>
+
+                            <!-- Liste -->
+                            <button
+                                v-for="msg in filteredMessages"
+                                :key="msg.id"
+                                type="button"
+                                class="flex w-full items-start gap-3 px-4 py-3 text-left text-sm transition-colors hover:bg-neutral-50"
+                                :class="selectedMessage?.id === msg.id
+                                    ? 'bg-primary-50 border-l-2 border-primary-500'
+                                    : 'border-l-2 border-transparent'"
+                                @click="selectMessage(msg)"
+                            >
+                                <Icon
+                                    name="material-symbols:mail-outline"
+                                    size="16"
+                                    class="mt-0.5 flex-shrink-0 text-neutral-400"
+                                />
+                                <div class="min-w-0 flex-1">
+                                    <p class="truncate font-medium text-neutral-800">
+                                        {{ msg.subject ?? t('mail.noSubject') }}
+                                    </p>
+                                    <p class="flex items-center gap-2 text-xs text-neutral-500">
+                                        <span class="truncate">{{ msg.fromName ?? msg.fromEmail }}</span>
+                                        <span class="flex-shrink-0">·</span>
+                                        <span class="flex-shrink-0">{{ formatDate(msg.sentAt ?? msg.receivedAt) }}</span>
+                                    </p>
+                                </div>
+                                <Icon
+                                    v-if="selectedMessage?.id === msg.id"
+                                    name="material-symbols:check-circle"
+                                    size="16"
+                                    class="flex-shrink-0 text-primary-500"
+                                />
+                            </button>
+                        </div>
+                    </div>
+
+                    <!-- Footer -->
+                    <div class="flex justify-end gap-3 border-t border-neutral-100 px-6 py-4">
+                        <MalioButton
+                            variant="tertiary"
+                            label="Annuler"
+                            button-class="w-auto px-4"
+                            @click="close"
+                        />
+                        <MalioButton
+                            :label="t('mail.pickerModal.submit')"
+                            button-class="w-auto px-6"
+                            :disabled="!selectedMessage || isSubmitting"
+                            @click="handleSubmit"
+                        />
+                    </div>
+                </div>
+            </div>
+        </Transition>
+    </Teleport>
+</template>
+
+<style scoped>
+.mail-modal-enter-active,
+.mail-modal-leave-active {
+    transition: opacity 0.2s ease;
+}
+
+.mail-modal-enter-active > div:last-child,
+.mail-modal-leave-active > div:last-child {
+    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
+}
+
+.mail-modal-enter-from,
+.mail-modal-leave-to {
+    opacity: 0;
+}
+
+.mail-modal-enter-from > div:last-child {
+    transform: scale(0.95) translateY(8px);
+    opacity: 0;
+}
+</style>