Generic email validator

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You can do only using html:

<md-input-container class="md-icon-float md-block" flex-gt-sm>
    <label>Email</label>
        <input md-input
            id="contact-email"
            type="text"
            ngControl="email"
            #email="ngForm"
            [(ngModel)]="contact.email"
            required
            pattern="^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,6})+$">

    <div class="md-errors-spacer" [hidden]="email.valid || email.untouched">
        <div class="md-char-counter" *ngIf="email.errors && email.errors.required">
            Email is required
        </div>
        <div class="md-char-counter" *ngIf="email.errors && email.errors.pattern">
            Email is invalid
        </div>
    </div>
</md-input-container>

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