jodd-mail/src/main/java/jodd/mail/EmailFilter.java
protected void and(final SearchTerm searchTerm) {
		if (this.searchTerm == null) {
			this.searchTerm = searchTerm;
			return;
		}

		this.searchTerm = new AndTerm(this.searchTerm, searchTerm);
	}
protected void and(final SearchTerm searchTerm) {
		if (this.searchTerm == null) {
			this.searchTerm = searchTerm;
			return;
		}

		this.searchTerm = new AndTerm(this.searchTerm, searchTerm);
	}
Sets {@link AndTerm} as searchTerm.

@param searchTerm {@link SearchTerm} to set as AND.